Honor Before Reason/Film

"Norrington: You actually were telling the truth. Capt. Sparrow: I do that quite a lot, yet people are always surprised."
 * When Ellen Ripley of Alien makes a promise, crosses her heart and hopes to die, you can bet your cocooned hide that no hive of monsters, snarling Alien Queen or imminent thermo-nuclear explosion will stop her from saving your life.
 * Every incarnation of the Predator lives by this trope. They will not kill anyone who is unarmed, ill, pregnant, or any other factor that would make them a viable non-combatant. They will also respect the wishes of their enemy if they desire to face off in a melee duel, as seen in the 2010 film Predators. They also may respect anyone who manages to kill one of their own, as seen in the second film. But sometimes, usually when provoked, they just throw honor out the window and use every weapon at their disposal to obliterate the enemy regardless of fairness.
 * Broken Arrow 1996: Rather than forcing Vic Deakin (John Travolta), who is out of bullets, to disarm a nuke there and then, Riley Hale (Christian Slater) drops his shotgun and accepts his former friend's challenge to one final fistfight.
 * Well, Vic is holding the remote control that can detonate the nuke in single click; if Riley's just being practical, the result can be disastrous.
 * Troy: Hector personally goes out to fight the invincible Achilles to allow the man vengeance for killing his cousin, despite knowing that Achilles can kill him easily, the cousin was dressed up like Achilles and charged headfirst into battle, and they had an squad of archers on the wall who could have put down Achilles fairly easily.
 * Titanic: The fathers and husbands doing whatever it takes to let their wives and children live even if they freeze and drown, which also happened in Real Life.
 * Con Air: Cameron Poe (played by Nicolas Cage), one of only two decent human beings trapped on a prison transport aircraft populated by murderers, rapists and "every creep and freak in the universe", was a free man on parole who could have left the plane at any time to go back to his wife and daughter (who had never met him). Yet, the former Army Ranger in him would not allow him to "leave a fallen man behind," hence Poe gladly traded his freedom to save the life of his diabetic friend and the sole female guard eyed by the plane's worst rapist, "Johnny 23".
 * Luke Skywalker's unconditional love and faith in the humanity of Darth Vader, seen as at best stupid and at worst suicidal by the rest of the galaxy, was what saved his father and the Star Wars galaxy.
 * Simultaneously giving us the second greatest Crowning Moment of Awesome in the franchise, and setting his father up to give us the greatest one.
 * Luke actually throws away his lightsaber so that he is defenseless against being tortured to death by Palpatine, rather than kill Vader and go to the dark side.
 * Then again, the Emperor was very explicit about his intended end state of Luke falling to the dark side.
 * Except, at least the part about Vader, it was hardly stupid -- for a talented and trained Force Sensitive, it is far more reasonable to trust your feelings and instincts. Luke states on more than one occasion that he can sense the good in Vader, and there's little reason to doubt this is literally true.
 * And you don't have to be force-sensitive at all to see ahead of time that Luke's faith wasn't completely misplaced. "It is... too late for me, son" isn't a line you'd expect to hear out of someone who is completely heartless or beyond saving.
 * In The Sound of Music, after the Nazi takeover, Uncle Max says, "Well, the Anschluss happened peacefully, let's at least be grateful about that." Captain von Trapp replies, "Grateful?!". As he was brought up as a part of Europe's old warrior-caste he probably took the fact that Austria submitted peacefully as a personal insult.
 * John Connor of Terminator 2 is another admirable example of this trope: he stops Sarah from killing Dyson even if it meant preventing Judgment Day, and his idealism allowed a war for humanity's future to be waged and won without murdering a single innocent human being.
 * Well, at least until the movie that followed. And the movie that followed that where-in it is revealed they didn't prevent Judgment Day, but delayed it, along with the deployment of T-600 and other sophisticated terminators.
 * Rambo from movie 2 onwards.
 * The most noble live-action example would have to be Indiana Jones in Temple of Doom, who could have escaped with fortune and glory, instead got captured to save a helpless little boy from being whipped to death. Not the smartest of moves, yes; but any illusions of him being a heartless and cynical mercenary disappears at this point, and we cheer for him all the way as he saves all of the children and defeats the evil of Kali-Ma.
 * In the Disney adaptation of Peter Pan having given his word of honor to not fly in his final duel with Captain Hook, Peter doggedly refuses to do so even when Hook proves to be the superior swordsman, having forced him to the corner of a mast leading to a fall that can kill him.
 * William Turner of the Pirates of the Caribbean trilogy is another suicidally selfless example of this trope. For an example, see the "You can't... I can," scene in the first movie. Even the initially selfish Captain Jack Sparrow seems to be infected by his idealism, and eventually obeys this trope as well. In Sparrow's case, though, he obeys the trope explicitly because he knows that it's the last thing people expect from him.

"Jack: Think about it -- The Black Pearl? The last real pirate threat in the Caribbean, mate. How can you pass that up? Norrington: By remembering that I serve others, Mister Sparrow, not only myself."
 * Norrington in Curse of the Black Pearl:

"Henry Ducard: Your compassion is a weakness your enemies will not share. Bruce Wayne: That's why it's so important. It separates us from them."
 * Those may have been his sentiments, but Norrington's actions were mostly reasonable. Barring the whole 'underestimating peculiar pirates when he really should have known better' part--that could possibly be stress combined with, well, Jack Sparrow.
 * In Batman Begins, when Bruce Wayne realizes Ra's Al Ghul's ninja clan is a den of insanely destructive fanaticism and refuses to help them inflict such harm on the innocent. When Ducard learns about Wayne's opinion, he dismisses it and Wayne has the perfect response to illustrate his honor.

"Interpol agent: Let me make him disappear Mr. Valentine. Around here, people disappear all the time. Agent Valentine: I can't do that. Interpol agent: Look where we are. Who will know?
 * Furthermore, Wayne also vows to fight evil his way. Even though he is in this den of villainy, surrounded and outnumbered 100-1, he doesn't hesitate for an instant to start his war on crime on the clan.
 * Toward the end of Kingdom of Heaven, King Baldwin IV offers Balian his sister Sybilla's hand in marriage. Sybilla is already married to Guy de Lusignan, but Baldwin IV offers to have Guy executed to allow the marriage to occur. It seems like a no-brainer, as it would allow Balian to ascend to the throne of Jerusalem, it would allow him to marry the woman he genuinely loves, and it would allow Balian to have a dangerous political rival eliminated. Balian, however, refuses, his piety not allowing him to have any part in Guy's death. Guy is allowed to live, and after Baldwin's death, ascends to the throne of Jerusalem, immediately inciting a war that allows Saladin's troops to overrun and capture Jerusalem. Had Balian accepted Baldwin's offer, Jerusalem would've remained in Crusader hands.
 * Of course, Balian realized long before anyone else did, that Jerusalem in Saladin's hands was not a bad thing at all, and in fact gives a passionate speech at the end of the movie not for the Crusaders to hold Jerusalem to their deaths, but in fact to lay down their arms and surrender for the glory of God. So he actually subverts the trope later.
 * In Warren Beatty's Dick Tracy, Tracy is kidnapped and taken to his girlfriend's apartment building's boiler room where Big Boy Caprice tries to bribe him. Although the smart thing for Tracy would be to pretend to accept the money and then turn it in to the Police Department as soon as he's let go, Tracy decides to throw it back in Caprice's face on principle. Of course, the Kid is watching all of this in hiding, waiting for an opportunity to help, and is really impressed at the detective's fearless honor, but there is no way Tracy could have known he had an audience.
 * Excalibur: Queen Guinevere has been accused of treason by adultery with Sir Lancelot, but not one person will champion her in Trial By Battle against Sir Gawain ... except the unarmored, untrained page Percival who appears to be operating either under the simple principle that the Queen must be championed, or The Dulcinea Effect. King Arthur knights him for this purpose ... although the battle is averted by the arrival of Sir Lancelot to take his place.
 * Come to think of it, King Arthur refusing to champion his own wife against the accusation -- on the basis he is king and must be her judge in this -- is probably a potent illustration of Honor Before Reason.
 * There's a similar plot and illustration of this trope in the film First Knight. After catching Lancelot and Guinevere in an embrace (ironically, she had been completely faithful to Arthur and was merely giving Lancelot a good-bye kiss), Arthur bluntly declares, "As a man, I may forgive. As a king. . .", then declares that two will be tried for treason, in public, lest the people think that he is showing favoritism or leniency that he would never have extended to anyone else.
 * The Beast of War (1988). The Pashtun rebels spare the life of the protagonist (a Soviet tank driver) when he appeals to their traditional code of Pashtunwali, which requires even an enemy to be given sanctuary if he asks. Though some of the rebels argue that the rules shouldn't apply to Dirty Communists who've learnt a single word of their language (nanawatai - sanctuary), the fact that he'd been left for dead by his comrades (and is willing to repair an RPG in order to blow them up in payback) is a significant factor in his defence.
 * The Sword, a short film by Pointy Stick Productions, appears to be built entirely around this idea. It features a boy with hundreds of opportunities to exploit flaws in the strategies of the Muslim invaders outside his castle wall, and an able-bodied monk in the castle that, with the boy's help, could at least match the invaders' fighting skills and shut the gate long before help could arrive for either side. This is made worse when the boy's father thinks it okay to go off and fight in the Crusades; but doesn't think it important to teach anyone how to practically defend a castle, nor work as a team. The fact that the castle is so oblivious how to defend itself save for its gate and that the villains in the forest, with all the accessible wood, don't think to build a flaming battering ram to take down that gate illustrates that the short film's producers really weren't all that concerned with historical realism. The one saving grace is perhaps that the monk successfully averts some films' certain beliefs about monks.
 * In Lord of War, agent Valentine will never break the law in order to arrest or stop Yuri Orlov.

Agent Valentine: We will."


 * The Mangalores in The Fifth Element live this trope to the core, and it's used against them. When they have barricaded themselves in a room and demand to negotiate, Korben Dallas walks in and shoots the leader in the head, as Mangalores refuse to fight without a leader. This results in one of the mooks complaining, "No fair!", rather than shooting Dallas when they outnumber him five to one.
 * While O-Ren Ishii of Kill Bill is far from a good person, what with making her living as head of the Japanese underworld, she fights the Bride honorably, refusing to do the sensible thing and finish her off while she is on the ground. Honor doesn't really pay off against a Roaring Rampage of Revenge.
 * Earlier (or later), The Bride had the perfect opportunity to finish off Vernita Greene, but could not do the deed with Vernita's daughter present.
 * Inglourious Basterds: Sgt. Werner Rachtman is given an opportunity to save his life if he will disclose the location of a nearby German camp. If he refuses, Lt. Raine is gonna call up the Bear Jew. He refuses to put the lives of his fellow countrymen in danger. "Hilarity Ensues."
 * ...And also a point about depravity being present on both sides.
 * Given what the Basterds tend to do to survivors of their raids (let's just say they leave them an unwanted memento on them to ensure that they are identified as being former Nazis.), Rachtman was probably lucky.
 * Don't forget the shining examples in Reservoir Dogs. Honor may just be a Tarantino thing. In the most prominent example in the film  If that isn't honor, I don't know what is.
 * Captain Miller's decision to let the German sniper live in Saving Private Ryan. Dumbass move with a capital D. But later, when Miller explains why he chooses Compassion Over Reason, you "almost" understand why he did it.
 * Captain Kirk and his crew decide that court-martial is a better alternative than not trying to rescue their friend in Star Trek III the Search For Spock. This wouldn't necessarily be an example of the trope if they had just gone and never come back, but in the next film they all willingly go back to face that court-martial. They then of course save the Earth on upon their return, so the actual court-martial involves nothing more serious than Kirk being demoted to Captain and handed a shiny new Enterprise.
 * In Ip Man 2, Master Hung keeps fighting in spite of his injuries because he will not willingly concede to the British.
 * Gene Autry, famous Singing Cowboy and only celebrity to have five stars on the Hollywood Walk of Fame, is known for having created the "Cowboy Code", a set of rules for cowboy characters in family friendly westerns — which is to say almost every character he ever played — to live by. The first of which falls straight into this trope; "Never shoot first, hit a smaller man, or take unfair advantage."
 * In Tangled, Rapunzel promises to return Flynn's satchel with the stolen tiara if he agrees to escort her to the palace to see the flying lanterns, stating, "When I make a promise, I never break it."
 * In An Affair to Remember, Terry refuses to let Ken pay for her to get better and be able to walk again because she thinks Nickie wouldn't approve, she knows Nickie can't afford it, and she thinks it would be ungrateful of her to let Ken give her back her mobility and then go marry someone else.
 * In The Mask of Zorro, the villain Captain Love pulls a gun on Zorro, but then discards it and faces him in a Sword Fight.
 * In "The 5,000 Fingers of Dr. T", Bart goes to quite a bit of trouble to avoid waking Dr. T when he goes to break into the vault to steal some money...and then Bart leaves an IOU with his name for the missing cash. Of course, this winds up having nothing to do with him setting off the alarms and getting caught.