Dave Lizewski: How do I get a hold of you?
Hit Girl: You just contact the mayor's office, he has a special signal he shines in the sky. It's in the shape of a giant cock.
When the 3 guys are kicking a single guy with Kick-Ass defending him and a bunch of people behind watching the fight, the trashcan on the ground keeps changing positions between shots.
Nicholas Cage, who played Big Daddy, purposely delivered his lines in the halting style used by Adam West in the 1960s "Batman" TV series.