Continuity mistake: In the beginning of the film, it shows Dave as a child and according to the film it is Brooklyn 1978. Dave is wearing a Dukes of Hazzard t-shirt, but that show didn't debut untill 1979. (00:00:55)
Continuity mistake: At the beginning of the movie when Adam Sandler is about to get on the plane they do a couple of close ups of his face. Whenever they cut to something else and then come back to his face his sideburns are shorter. This happens a couple of times in this scene. (00:03:10)
Continuity mistake: The cabin of the airplane is that of a 767. The shot of a flying plane that comes between pre and post take-off scenes is of a 737. (00:03:50 - 00:04:50)
Continuity mistake: When Dave boards the plane the way his lapel is crumpled under the strap of his bag changes several times from shot to shot. (00:03:55)
Continuity mistake: When Adam Sandler and Jack Nicholson are on the plane, they are watching the movie Tomcats, and the movie keeps jumping back and forth out of order. (00:04:55)
Continuity mistake: After his first court case Dave goes to the Community Center where Buddy does anger treatment. When he picks up one of Buddy's books from a table there are some wooden chairs scattered in the background. In the next shot we see him from an upstairs landing, and there is now one wooden chair with its back directly at the table, and one white plastic chair where the wooden chairs were before. (00:08:35)
Continuity mistake: After the first court case Dave walks upstairs to meet Buddy. When he comes through the door he is holding his verdict papers in his hand, which he didn't have with him when he was downstairs. (00:08:40)
Continuity mistake: When Dave approaches Buddy in the Community Center there's a white painted brick wall in the background. When the camera angle changes the wall is covered with a colorful carpet. (00:08:55)
Continuity mistake: When David is at his first anger management meeting, Lou is wearing a black shirt that sometimes covers his stomach and sometimes does not, riding up and down depending on the shot. (00:10:20)
Continuity mistake: When Stacy tells her story in the first fury fighters' meeting, her hair changes several times between covering her medallion and not covering it. (00:11:50)
Continuity mistake: When Chuck is assigned as Dave's anger ally he puts his hand on Dave's shoulder from the side. When the camera shows them from behind his hand is on the back of Dave's shoulder. (00:17:40)
Continuity mistake: After the first fury fighters' meeting Buddy declares Chuck as Dave's anger ally. Chuck wants to give Dave his phone number, pulls out a letter to his father he had started, puts it back in the pocket, then takes out a smaller piece of paper with the number. Then he walks off with both hands empty, but when the camera angle changes he is seen waving back with a piece of paper which, sizewise, looks very much like the one he had given to Dave. (00:17:45)
Continuity mistake: When Dave and Linda talk at Dave's apartment about Andrew's 'thing' Linda puts her bag on the kitchen table. When she puts her jacket on top the bag is turned by 90 degrees. (00:20:00)
Continuity mistake: In the scene with Dave and Chuck at the bar, when the camera is on Chuck before he picks up the fight, we twice see the arm of the same person opening the door and holding it open without walking in. (The black and white sleeve has a strange resemblance with Lou's from the fury fighters' meeting scene, and it looks a bit as if he opened the door but realized that he had no business being on the set.) (00:21:40)
Continuity mistake: In the restaurant, before they get into the fight with the bald guy and the blind man, when they are sitting down, you see the same lady in a black miniskirt walk past John Turturro twice. (00:21:40)
Continuity mistake: In the night after the first fury fighters' meeting Dave and Chuck sit in a bar. When Dave says that he wants to go back Chuck's cigarette is in his mouth. When the camera angle changes it's in his hand. A little later, when Chuck memorizes the chicks in the war frying his banana the hand with the cigarette changes from hanging down to pointing up in mid-sentence. (00:22:00)
Continuity mistake: When Buddy stays over night at Dave's place the first time Dave ends up sleeping on the floor with his teddy in his arm. When Buddy wakes him up and takes a picture the right arm of the teddy points into different directions from shot to shot. (00:29:30)
Continuity mistake: When Buddy and Dave drive to work Buddy pulls the brake on the bridge. Through the rear window you see cars skidding and jamming up right behind them. Then comes an areal shot where there are just two cars braking at a distance, but when it cuts back to the view from the front the jam is back. (00:32:25)
Continuity mistake: In the scene when Dave and Buddy sing "I am pretty" on the bridge Buddy's seat belt shifts between his shoulder and his arm several times, sometimes so far down that it's not in the picture any more. (00:32:55)
Continuity mistake: When Dave and Buddy sing "I am pretty" on the bridge the window is visibly closed, only during their arguments with the drivers who go by (especially the taxi guy) the window is open. (00:33:05)
Chosen answer: Yes, there is a deleted scene where Adam, and Jack visit her in the hospital. I'd also like to say that on the DVD, there is a section with all the deleted scenes from the movie, including the bizarre visit to his whacko mom.