Revealing mistake: In the scene where Jake fights in Cleveland, in one shot right before he punches you can see his opponent's mouthpiece is taped to his head so it will fall off making it look like it came out of his mouth. In the next shot he has his mouthpiece back in his mouth.
Raging Bull (1980)
1 revealing mistake
Directed by: Martin Scorsese
Starring: Robert De Niro, Joe Pesci, Cathy Moriarty, Frank Vincent
Visible crew/equipment: When Jake is in the bedroom with his wife (where he pours ice water on himself to calm down) you can see the top of some crew member's head in the foreground right below the camera lens.
Jake La Motta: Who's an animal? Your mother's an animal, ya son of a bitch.
Trivia: The film was amusingly satired by Mad Magazine as Raging Bully - truly an apt title.
Chosen answer: No. But Jake's paranoia and possessiveness had consumed him to such a degree that he was convinced that he (Joey) had, based on Vickie's impulsive remarks.