Audio/visual unsynchronized: When Rocco is testing the bomb in the morning in the cabin, and says, "We're going to detonate it", his mouth isn't moving with the words.
Continuity: When Frank is going to look for a disguise he drives into a parking meter. The way the parking meter lies on the hood of the car changes between shots.
Continuity: At the beginning of the movie you can see a bench at the end of the stairs. When the prams roll down the stairs and ram into the bench, the bench has moved closer to the stairs and is now bigger.
Continuity: When Frank is disguised as Phil Donahue he jumps on the end of the stairs, but in the next shot he's on the side of the stairs.
Revealing mistakes: When Frank burps up the shredded pieces of paper you see pieces coming out even though his mouth is almost closed.
Revealing mistakes: When the prams roll down the stairs you can see the ignition pipes that shoots out the babies.
Continuity: When Jane meets the guy outside of the club and shocks him, he isn't even standing in the road. When he gets run over, he's right in the middle of the road.