Here's a link to a hilarious "Snide Remarks" column by Eric D Snider about his rejected Twilight Screenplay. If you haven't read it yet, you should!
Here's just one of the many funny scenes:
BELLA: It's tough being the new kid in school! Especially when everyone is so friendly and helpful and interested in me. Why can't they just leave me alone so I can sit in the corner and cut myself?
CLASSMATE: You're awesome, Bella!
BELLA: See what I have to put up with? Hey -- who are those hot people over there?
CLASSMATE: Those are the Cullens. They avoid direct sunlight, they don't eat food, they sleep in coffins in a graveyard, and holy water burns them. I think they're Canadians.
BELLA: They sure are spectacularly gorgeous.
CLASSMATE: Yes, they are.
BELLA: I mean seriously, those people are BEAUTIFUL. Especially the one who keeps looking at me. Man alive, that guy is stunning. I mean, wow. He is hot buttered seduction on a stick. I'm not interested in him sexually, of course, because sex is dirty, but wow -- LOOK AT HIM! Yee-ikes! Hubba hubba! If you don't mind, I'd like to spend the next 75 pages talking exclusively about how attractive he is, and then bring it up again every paragraph or so for the remaining 400 pages.
CLASSMATE: Knock yourself out.