Gotham High

Ok, so we've all seen batman as a grownup: incredibly awesome and guaranteed box office GOLD. Batman as a kid would be boring: boohoo dead parents and all that. But what about batman as a TEEN?!
BOOMPOW!
Enter Gotham High,
Wait, what is that?
Is that success I smell a-brewin'?
Before I lay it all out, I'll ease your mind by saying we already have a sequel in the works: Gotham University! (and a threequel: Gotham post-grad!)
Now, strap into your pampers because this movie is going to shit money. Literally.
Batman and Joker: two seniors in high school. They both have built their reputations or the past three years, and now they're the top dawgs of Gotham High. This means one thing of course: RIVALRY!
They're totally rivals!
We see them pass each other in the hall and Batman's like “something smells poor. Joker must be nearby!” Then he and his snob friends chuckle and Batman's monocle falls out of his face from laughing so hard and he almost spills his martini. Also Catwoman is his girlfriend and she's the head cheerleader.
Then Joker punches him and the teacher, who is the Green Lantern, breaks them up and is like “superheroes aren't supposed to fight! Get back to class you knuckleheads before I send you to principal Spiderman!” and they're both like shrugging their shoulders and looking cool and like “whatever.” They both know mean old principal Spiderman is mad at them for always being rivals and tearing the school spirit in half instead of acting like the brothers they are. Also Catwoman is the joker's girlfriend and she's head of the spirit squad.
All of a sudden, this rivalry is about to explode!!! why?
Because Samantha Campbell is a new transfer student who just moved from New York out here to California to attend Gotham High School. And she is totally mind-blowingly hot! You'd better believe it!
So they're in chemistry class throwing insult-notes at each other and then, in walks Samantha Campbell, and BAM! jaws=on floor. heads=turned.
Batman's all like “you can sit here Samantha!” and joker's like “i got you flowers Samantha!” and Batman's like “you can wear my varsity jacket Samantha!” And the teacher, who is the Punisher is like “everyone settle down! There are two things I know about: Chemistry and punishing!”
so they all sit down, and Batman and Joker make angry eyes at each other so it's clear to the audience that it's ON!
So we see Joker at home and hes family's all mean and his dad's a gambler-drunk and he's like “no one understands me!” and he runs into the yard and gets into his purple camaro and peels rubber outta there! Then we see Batman at home and his mom's like “why don't you buy her things? That's how your father and I met.” and his dad's like “she's not good enough for you son. We need a family that's fat with mutual funds and banking! I raised you better than this!” And Batman cries a single tear because he's rich and rich people don't know how to cry properly. Then he leaves on his harley, and puts on his leather jacket, which has a skull on the back (skulls are scarier than bats).
Then Batman pulls up to the red light and who should be there but the joker in his purple camaro. And they both look at each other all sad, and we can just tell that they used to be best friends because of family stuff. Then before they can be best friends again, or say a word, Samantha pulls up to the light in her daddy's ferrari, which is candy red, like Samantha's blonde hair, which is dyed black now to match the car. Batman sees her black hair and he winks at joker like she dyed it black to match his batman suit. Joker revs his engine and batman revs his motorbike and the light turns green and they're off! We blast Sammy Hagar's “Heavy Metal” as loud as the theatre speakers can go, BLASTO!
They race all through town, and Samantha is following to see which one will win her heart, and they both have gadgets in their vehicles like james bond, but the joker's are all krappy like with duct tape and milk jugs, but they're still powerful (he's poor, but scrappy!).
This race signifies that snobs will always be versus slobs in life and teenagers should get used to it and find out who they really are inside, so it's kind of a feel-good life lesson movie too.
Then they both crash into fireballs in the side of a building that ironically is owned by the evil Daredevil corporation.
And Iron Man comes out of the building in a tuxedo and he's like “you'll pay for this damage, you knuckleheads!”
They both look at Samantha, who is eating a popsicle, and they realize they can't run away like cowards. It's time to team up and fight together! So Batman uses his gadgets and Joker uses his laughing and they both are winning the fight against Iron Man, but then he turns into the HULK and says “it's clobberin' time!!!” they both get their noses bloodied, but after a sweet 45-minute cgi battle, they emerge victorious. They look at Samantha, but she is eating a banana with her throat and isn't impressed with either of them yet.
So they look at each other and they're like “i guess now it's time to fight each other for her love.”
they are both bloody and broken-nosed and batman's cape is all beat up and then professor Punisher shows up and he's like Samantha, you're causing all of this?!”
Samantha says “Mr. Punisher, I really need straight A's if you catch my drift.” (the audience is like “Oh ho-HO! It's an erection thing!)
and the Punisher and Samantha walk away arm in arm and Batman and Joker learn a valuable lesson about women and vow never to fight each other again. But then another hot girl comes into the screen (EVEN HOTTER than Samantha!!!), and she's like “I'm Nadia, the new exchange student from Norway.” Then Batman and the Joker look at each other and make angry eyes and the credits roll as we kick in with ACDC's “Back in Black”.