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)
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)
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)
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)
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.
Answer: According to the IMDB, the only scene cut out was an extended version of Norberg and Ed's visiting Dreben near the beginning of the film. So you can assume the rest of Simpson's scenes were left in.