Revealing mistake: When Mother Russia blows up the police car with the gas bottle, both policeman are thrown clear with no damage at all, showing that they came from behind the car and not from inside it.
Kick-Ass 2 (2013)
1 revealing mistake - chronological order
Directed by: Jeff Wadlow
Starring: Jim Carrey, Aaron Taylor-Johnson, Chloe Grace Moretz, Christopher Mintz-Plasse
Revealing mistake: When Mother Russia blows up the police car with the gas bottle, both policeman are thrown clear with no damage at all, showing that they came from behind the car and not from inside it.
Girl: Maybe she's a dyke.
Mindy Macready: Maybe I'll jam my foot up your snatch.
Trivia: Stay until the end of the credits for an interesting scene.