Continuity mistake: In Maggie's first fight (when Frankie isn't her manager), she comes off after the first round and takes her mouthpiece out. After talking to the manager, she gets back up to enter the ring without putting it back in, but when the bell rings she has it in again.
Continuity mistake: During the press conference at the U.S. Open where Roy begins to list the companies who are sponsoring him, he says that one of them is "Woody's Smokehouse" when the patch on his jacket says "Wally's Smokehouse".
Continuity mistake: In the scene when Nick Nolte is arguing in the parking lot, he unlocks his car door, but his window is rolled down in the same scene.
Audio problem: In the scene where Phil starts to cry when he's kissing his wife, you can hear him say "I'm in way over my head" but his lips don't move at all. (00:34:20)
Continuity mistake: Brubaker slides home head first. When he is coming to the dugout, he gives his team mates high-fives. It can be clearly seen that the front of his uniform is clean and spotless.
Continuity mistake: When Monica gets out of her car after her first day at the bank, she stumbles over her shoes. She takes them off, talks to Q for awhile, and then heads into the house. Watch as she rounds the corner to the house (right when she gets to the hedges, watch carefully because she walks around the hedges fast) you can clearly see that she does in fact have her shoes on, without her putting them back on. She didn't even bend down like she should if she were putting them back on.
Deliberate mistake: Several of the matches Nacho loses, he should actually have won. In Mexican pro wrestling, it is illegal to rip another's mask off, and results in immediate disqualification. This happens twice to Nacho, both in the fight with the midgets and in the final against Ramses.
Continuity mistake: The final game is reported by the ESPN announcer as being the "Inaugural Bourbon Bowl", meaning it's the first one. Later, on Bobby Boucher's jersey, there is a patch that says "Bourbon Bowl 50th Anniversary 1948-1998".
Continuity mistake: In the very first scene in the movie, where we see Steve listening to the motivational tape, he is wearing a red tie with polka dots. Then, when he is shown walking toward his boss' office and he falls, you can see that his red tie has changed to a gold tie. When he is in his superior's office you can see that it is back to red, and when he goes to find Stavi in the restroom the tie is gold again. (02:00:00)
Revealing mistake: Throughout the extended scene where Ralph was training with Father Hibbert in pouring-down rain, both characters' faces were completely dry when they should have been completely wet.
Revealing mistake: In the scene where Stripes is looking in the water at his reflection, his body and the reflection don't quite match up. You can tell by his movements that his reflection is computer generated. (This is verified by the audio commentary.)
Continuity mistake: In the last game of the movie you can see that Ray Mitchell (Angel Player) hits a home run to tie the game. If you look you can see that the home run ball goes over the fence and out of the stadium but then after they change cameras to Ray and then back to where he hit the home run it shows a man with the ball in his hand as if he caught it.
Other mistake: When the setup for the first match is announced, the Ram is said to fight Tommy Rotten "for the strap", which is pro wrestling slang for a belt, meaning it was a title match. But after the match, which he won legitimately, The Ram is not announced as a new champion, nor is he ever referred to as such, and no belt is given to him after the match.
Continuity mistake: As Max is carrying a birthday cake out of the kitchen, the candle blows out as he walks. But the candle is suddenly lit again when the camera angle changes, as he walks into the living room.
Continuity mistake: In the last inning of the championship game, Buttermaker opens a beer in a short brown bottle (perhaps a Pabst Blue Ribbon, Red White and Blue, or Red Stripe) right before Amanda grounds out. When he exits the dugout following the at-bat, he's holding a Coors.
Continuity mistake: Right at the beginning, the kid's hand keeps swapping from being on the middle of the paper to on the upper part, between shots.
Factual error: Cruise is breaking and if you watch the eight ball after the break it's following the 5 into a pocket at the end of the table closest to Tom. Now the 8 ball didn't necessarily go in because they focus on the one ball, but in the next frame shot, there's no way it could be at the opposite end of the table like they show. (00:29:20)
Audio problem: Towards the end when Rubin Carter is in court, there are numerous occasions when you can hear the courtroom observers talking and whispering to each other. In the camera shots of the observers, there is not one person that is visibly talking.
Revealing mistake: As Machine Gun Joe runs slowly runs over a fisherman in a small brook, he stops and "peels out" on his head. You can see a film crewman in the driver's seat doing the actual carnage.
Continuity mistake: There is a scene when a girl knocks on the door of the house of her friend. She opens and in the background you can see another girl doing nothing. The shot later she has disappeared.