Tenacious D in The Pick of Destiny/YMMV

Alternative Character Interpretation: Is Jack Black an Iconic, if hammy, baddass who does what he does for the rock? Or is he just fighting for his daddy's love the only way he can, through music, as suggested by "Baby" and "Sasquache"?
Awesome Music: The main reason to watch this movie. Especially "Beelzeboss".
- For a non-Tenacious D example, "Agnus Dei" the song playing when Jables gets his first guitar
Broken Aesop: The film starts off with Jables being ranted at by his fundamentalist Christian dad, who claims that rock and roll is evil and the work of Satan, to which JB says it's "not the Devil's work, it's magical and rad". The rest of the movie is spent searching for a pick that makes you an awesome rock star through the power of the Devil.
Complete Monster: Satan, of course.
Fridge Brilliance: JB agrees to put KG up as a bet for their rock-off with the devil...despite the Devil having said that he literally CANNOT decline a rock-off challenge. However in order to send Beelzeboss back to hell from whence he came. Jables HAD to strike a deal with him of some sort. There would've been nothing to gain from the challenge on either side, had Jables not offered Kyle's soul to Beelzeboss in the first place. Beelzeboss feed on the souls of the tormented. It literally was "the only way". If the D had won WITHOUT doing this, Beelzeboss would be loose on Earth and would have taken control of the world.
- Seeing as Beelzeboss threatened that they would suck his cock for awakening him on to the mortal plane, JB actually AVOIDED sucking cocks in hell, by specifically offering Kage's soul in case they lost the challenge, where they'd be both literally fucked. And seeing as they won they don't NEED to go to the big rock-off anymore because they just saved the world with their rock, and Beelzeboss pays their rent now.
  - Unfortunately for them, they didn't actually win the rock-off, they just reflected Satan's attack with JB's guitar (a symbol of friendship between JB and KG. Yeah, symbolic stuff tends to do well against the supernatural). In a deleted scene, they mooch off of Lee after the events of the movie. Or maybe the guitar only reflected the attack because they had won; it's not really clear.
  - Sure they won. It's no coincidence that drums, amp effects, and backup vocals come out of nowhere in the middle of the song, even though all they have are their unamplified guitars and their own voices. They literally have The Power of Rock on their side, and maybe even a little help from The Big Man himself.
  - The song at the end of Beelzeboss is the song Tribute is a tribute to, think about it.
- OK, OK. Jables is clearly the greatest Chessmaster the world has ever known. He gave the Devil his terms: either he could have taken his sorry ass back to Hell and pay their rent or he could take Kage back to Hell to be his little bitch. In accepting this arrangement, the Devil agreed to shell out about $300 or take home a brand spankin new, rotund personal sex slave and go back to Hell either way.
- It makes perfect sense that Beelzeboss will live in "The city of fallen angels", as Dio put it
Crowning Moment of Awesome: Jables wears the Pick around his neck and starts to sing. On the first high note he hits, the microphone bursts into flames. They call it "Master Exploder" for a reason, as you can see a few seconds later.
- After getting a spanking from his dad, getting all his rock posters ripped to shreds and getting grounded, Jables prays to a poster of Ronnie James Dio(which survived being ripped to shreds by not being visible behind his room door). DIO ANSWERS(the awesomeness starts at 2:12).
Straw Man Has a Point: So, wait... rock and roll actually does come from the Devil?! JB's dad was right!
- Considering it is Tenacious D, this was likely entirely intentional. That's probably part of the joke... JB's dad is an asshole, but he's not wrong.
So Bad It's Good: One of the very few examples that manages to pull this off intentionally.