Continuity mistake: 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. (00:18:20)
Audio problem: When Rocco is testing the bomb in the morning in the cabin, when he says, "We're going to detonate it", his mouth isn't moving with the words. (00:50:35)
Visible crew/equipment: When the prams roll down the stairs you can see the ignition pipes that shoots out the babies. Clearly visible in the first pram. You also see some sort of ignition smoke from one of the prams after the baby has been "shot" out. (00:02:55)
Continuity mistake: 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. (00:00:55 - 00:02:55)
Continuity mistake: When Fred and Rocco gets to Rocco's house you can see the air conditioner behind them is on when Rocco says his mom is itchy about trying her new gun. When Tanya enters the room it cuts back to Frank and Rocco and now the air conditioner is off. (00:43:30)
Audio problem: At the Academy Awards they show a clip for best picture for "Mother." During this clip, there is one character singing yet his/her mouth isn't moving. (01:00:30)
Continuity mistake: Right after the title sequence when Papshmir is visiting Rocco, when Rocco hold his hand against the window to show Papshmir something, at the end of that shot you can see the reflection of Rocco smiling, but the next shot of him, he isn't smiling. (00:08:30)
Deliberate mistake: At the end, when the applause sign falls on Rocco's mom, it should stop working. (01:10:35)
Audio problem: When the prisoner guard is being force fed with beans one of the prisoners stands behind him and says "Come on son, you can do it. Eat some beans." Then you see his lips continue to move but you can't hear him say anything. (00:36:35)
Continuity mistake: 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. (00:41:30)
Continuity mistake: 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. (00:58:50)
Audio problem: After the explosion test, Rocco does a Beavis and Butthead impression, however his mouth doesn't move.
Continuity mistake: The writing on the hankie, in lipstick, changes from when Frank wrote it to when Jane opens it. When Frank writes the number "21409" its touching his initials (the monogrammed FD). But later when we see it, the numbers are above the initials.
Other mistake: Rocco places the bomb in the "Best Actress" envelope, but Drebin discovers the bomb in the "Best Picture" envelope during the announcement for Best Picture.
Suggested correction: No, he doesn't. He grabbed a stack of envelopes and put it in the bottom envelope. The top envelope was "Best Actress", but there were several underneath it and he ends up putting it in the "Best Picture" envelope.
Bishop73