Corrected entry: When Spider insults Tommy he suddenly draws his gun and kills him, and the other people at the table quickly take cover from the gunfire. However, if you watch the other actors at the table, they all begin ducking out of the way before he even takes his gun out.
Corrected entry: There is a scene when Samuel L Jackson is killed in his bedroom. He's not wearing trousers, but after the murder there is a shot of him lying on the floor with trousers on.
Corrected entry: When Tommy shoots Stacks, there's already blood spatter on the wall.
Corrected entry: When Henry throws Karen off the bed after she has pointed the gun at him and he points the gun at her in one shot she has both shoes on and in the other the foot nearest the camera has no shoe then again in a split second the foot has a shoe.
Corrected entry: In the first Idlewild scene, when the truck driver goes out the door of the bar and sees the his truck has been "stolen", he comes back inside to use the pay phone. During that scene various modern cars and trucks can be passing by in the background. (00:16:20)
Corrected entry: When Tommy blows away Stacks, he's got a silencer on the gun. However, when they show the scene in slo-mo, there's a huge bang every time Tommy shoots.
Corrected entry: When Jimmy is in the bar with Henry asking to go for a walk, he has a very distinctive tie on. Once outside, Jimmy asks Henry if "Morey tell his wife everything". Although they have just walked outside, Jimmy has a different tie on.
Corrected entry: When Karen is sitting on top of Henry in the bed with a gun pointed to his face, the gun keeps changing colors. One second it's silver, the next it's black.
Corrected entry: When Karen goes to confront Janice about her affair with Henry, she pages Janice through the building intercom. Janice is seen crying on her couch and trying to cover her ears from the sound of Karen screaming at her. It is impossible for her to hear everything Karen is saying because she is not holding the "Listen" button on the intercom. All she would here is a buzzing sound.