Shrek the Third

Shrek the Third is a 2007 animated fantasy comedy film and a sequel to Shrek 2. The film received mixed to negative reviews but did well at the box office.

King Harold dies, leaving the ogre couple as his successors, and Shrek, unable to accept this fate, leaves Far Far Away to search for another heir to the throne, a teenage loser named Arthur Pendragon. Meanwhile, Prince Charming rallies various fairy tale villains and organizes a coup, taking over Far Far Away, and Fiona (pregnant with Shrek's kids) assembles her own team of fairy tale princesses to confront him.

Tropes used in Shrek the Third include:

Adipose Rex: Shrek and Fiona during their brief stint as monarchs of Far Far Away.
Alpha Bitch: Guinevere.
Alternative Foreign Theme Song: The movie has a different theme song for the Japanese version, called "Love is the Greatest Thing" by winds.
Ambiguously Gay: Prince Charming again. Arguably averted with his romance with Rapunzel.
Arson, Murder, and Jaywalking: Among the things the villains do on their rampage, they loot shops, terrorize citizens, cause general mayhem and destruction and... rip the stamps off of letters before mailing them.
Arthurian Legend: The film is based on this.
Bald of Evil: Rapunzel, much to her embarrassment. Let's just say that her "long hair" is in fact an elaborate wig.
The Beast Master: Snow White. See Crowning Music of Awesome.
Black Comedy: While rehearsing his lines for the scene in his play where he kills Shrek, Charming (who is going to use a real sword to kill Shrek for real) apparently kills the guy in the Shrek costume.
By Wall That Is Holey: Happens to Prince Charming. Then almost happens in the ending.
Call to Agriculture: Hook's plan with planting "beautiful daffodils".
Confusing Multiple Negatives: Several elaborate examples.
Cool Loser: Artie.
Cool Old Lady: Queen Lillian. Bashing a solid brick wall with her head. Twice!
Dead Baby Comedy: Despite the PG rating, Shrek the Third reaches this point early on with the infamous "knighting" scene.
Drag Queen: Kind of inverted again. Ugly Sister 'Doris' from Shrek 2 is now one of Fiona's girlfriends is still voiced by a man, and her similarly ugly sister 'Mabel' is voiced by another man, Regis Philbin.
Dramatic Curtain Toss
Dream Within a Dream: Or rather a nightmare within a nightmare.
Ermine Cape Effect: Parodied in Shrek the Third. Shrek and Fiona are forced to wear ridiculously confining finery for a ceremonial dinner. Shrek has to get some poor servant to scratch his bum for him...and wouldn't you know it, that's when the curtain is raised. To top it off, the buckle on his belt pops, leading to Disaster Dominoes.
Et Tu, Brute?: Rapunzel betrays the Princesses and Fiona due to her crush with Charming.
Even Evil Has Loved Ones: The Cyclops has a daughter!

Cyclops: Who would have thought a monster like me deserved something as special as you?
Shrek: She's got your eye.

Everything's Better with Princesses: Lots of princesses.
The Evil Prince: Prince Charming.
Faux Action Girl: The Princess Rampage showcased in the trailer of Shrek the Third ends with meek surrender at the first sign of resistance.
- Their Storming the Castle sequence was certainly Madagascar-penguin-worthy, though.
Freaky Friday Flip: Puss and Donkey.
Heel Face Turn: At some point between films Doris the Ugly Sister from Shrek 2 actually turns from a barmaid in a villain's bar to one of Fiona's girlfriends. We don't know how, why or when this happened, just that it's funny because the man in drag is back.
High School: In medieval times and within in a fairy tale world.
Hippie Teacher: Merlin.
His Name Is--: Subverted during the king's death.
Humiliation Conga: What Shrek and Fiona have to endure while being acting rulers of Far Far Away.
Inconvenient Itch: Shrek is trussed up in some Impossibly Tacky Clothes for a royal appearance, and suddenly develops a horrible itch on his rear. He's scratching that itch when the curtains open, giving the waiting crowd a view they really didn't want.
It Makes Sense in Context:

Donkey: We went to high school, then the boat crashed, and then we got bippidy-boppity-booped by the magic man!

Jerkass/Jerk Jock: Lancelot and his friends.
Paper-Thin Disguise
Poke the Poodle: When the villains attack Far Far Away, there's a montage of them "rearranging" the place. Cut to the cyclops ripping stamps off unsent letters and then cramming them back into the mailbox.
Poor Predictable Rock: A sponsored commercial for Sierra Mist plays off this trope, having Shrek using paper since he claims Donkey's hoof represents rock.
The Power of Rock: When Snow White unleashes the power of Led Zeppelin's "Immigrant Song", causing the forest animals to attack the Huorns guarding the city gates.
Psychopathic Manchild: Prince Charming.
Redemption Demotion: Dragon. While in the first film she is shown to have defeated many knights, and is barely defeated by Shrek, also eating Lord Farquaad at the end, she seems a lot weaker in Shrek the Third, only able to throw one of Prince Charming's mooks away before more of them capture her. They also subdue her easily with spears in the final confrontation.
- Still... Dragon does end up supplying the coup de grace against Prince Charming.
Ribbon-Cutting Ceremony: Shrek, performing one of his duties as stand-in king, attempts to christen a newly made ship via the shattering of a wine bottle. Unfortunately, he accidentally pushes the ship off (by leaning on it awkwardly) before he can finish the ceremony. Desperate, Shrek hurls the champagne bottle at the newly-made ship, blowing a hole in it and causing it to catch fire somehow.
Show Some Leg: ...by one of the Ugly Sisters. Still works, though.
Sorry I Left the BGM On: two cases in succession. Merlin's porchlight apparently plays the classic "That's What Friends Are For"; and later on, Shrek and company are attacked by treants to background music by Captain Hook on the piano.
Sound Effect Bleep: Twice when Fiona is trying to say she's pregnant, when Shrek chucks the horn over the side. A different, much deeper horn is then used to cover up a vulgarity from Puss.
Tempting Fate: "Someone better be dying!" Cut to King Harold on his deathbed.
Too Many Babies: A nightmare of Shrek's.
Totally Radical: "Help! I've been captured by an ogre who's trying to relate to me!!"
Wave of Babies: The inevitable extension of the Too Many Babies example.
The Worf Effect: Dragon. That weighted chain-net clearly had her name on it.
Your Costume Needs Work: Shrek passing for a mascot at Arthur's high school gets spun into a Chekhov's Gun.