Continuity mistake: When Tommy and Greg get into the limo to head to the premier, there are boxes of The Room merchandise and promotional material scatted all about in the limo and filling the driver side of the back seat. But in the shots after they drive past the theater, the seat is suddenly completely empty with all those boxes disappearing. They are also missing in several of the close ups of Tommy, then back in others. (01:20:15 - 01:21:00)
Continuity mistake: As Charlotte and her father are hearing Paganini play the violin in their house, they walk to the stairs. As they reach it, her father's head suddenly is turned facing up the stairs.
Continuity mistake: Venus' starts off with a burger in her left hand which immediately changes to a watermelon segment, while a cookie has now appeared in her right. She puts the watermelon down only for it to reappear in her left hand when the camera changes angle. The cookie has now disappeared. The camera switches again to show that the watermelon is no longer in her left whilst the cookie has returned to her right... which is swiftly replaced by her half-eaten burger. (01:07:00)
Continuity mistake: In the opening scenes while lost on her way to Sandringham, Diana drives a Porsche 911 with licence plate G580SGT. Later when she stops by the scarecrow the same car's plate has changed to J548LRP, it remains so for the rest of the movie. J548LRP was an actual plate used on a Mercedes SL500 that Princess Diana once owned.
Continuity mistake: After Jimmy and Billy's mother dies, they're sitting in the kitchen having a drink. Billy's beer is about 3/4 full, then in a closer shot it's more full, with only a few sips taken.
Continuity mistake: In the scene where Van Gogh cuts his ear off, he smothers his right ear with a towel to stop the bleeding. As the movie continues, we notice that throughout the whole movie his left ear was the one missing not the right ear as initially portrayed.
Continuity mistake: When Norman fishes with Paul for the first time after returning from Dartmouth, his fly reel changes three times in one scene. The first view of the reel it's a brand new Pflueger reel. The next view it's a worn and beat up reel. And the final view it's a Hardy reel.
Continuity mistake: J. Edgar takes his secretary-to-be on a date and tries to impress her by showing off his card system for cataloguing books in the Library of Congress. When he runs to the book shelves he brushes past an open book set up on a display stand - sitting on a sheet of glass. The glass moves when he touches it and hangs off the edge of the table. When he returns seconds later the glass is back in place, centered on the table. His date did not move; she was still standing where he left her a few feet away and they were the only two people in the Library.
Continuity mistake: Towards the end of the movie, when Alan comes out to Joan, there are a number of shots over his right shoulder. On the back of his jacket is a piece of lint that appears and disappears from shot to shot.
Continuity mistake: After Beethoven pulls his nephew out of the tavern and yells that he is worthless, Beethoven is seen doubling over in pain. When the shot cuts to Karl, Beethoven is in the background, standing up straight, and doubles over again.
Continuity mistake: When Chris is in the trailer with Tracy, he walks inside with his towel around the back of his neck. During the scene he takes the towel off, then when we see a shot from behind him later, the towel is still there.
Continuity mistake: In the scene where Margaret Thatcher is teaching her daughter Carol to drive, you see Margaret's window partially open but just as they near-hit the cyclist, her window is down just enough for her to stick her hand out but in the next shot its back to being partially open.
Continuity mistake: A man falls back into mud, in the pig pen. But his back is clean.
Continuity mistake: When the "substitute" boy gets off the train he is with an older women. The reporters ask the mom and boy to take a picture together. You can see from the camera angle that the older woman is in the background when the flashes go off taking the picture. Later in the movie, the psychiatrist holds up a newspaper article with the picture in it. In the newspaper picture, the older woman is not in the background.
Continuity mistake: When Bob Zelnick jokes about wiretapping Donald Nixon, his arm moves from resting on the tabletop to under his chin between shots. (00:39:40)
Continuity mistake: When the Babe hits his sixtieth home run, the game is played against the Washington Senators. However, when running the bases, you can see that the scoreboard has them playing against Chicago. (01:01:00)
Continuity mistake: When Rachel McAdams is interviewing Joe in the coffee shop, she starts off with a couple of lines written on her notepad, then half a page, then back to a few lines, then a full page, etc. It changes in almost every shot. (00:38:40)
Continuity mistake: In the scene where we see school children leaving the building and are going home we see two children go over to the see saw to ride on it. Buffalo Bill is talking to a little girl just outside the doorway and when it cuts in for a closer shot of the girl, you can see in the background there are now four children on the see saw; then again when the little girl starts walking home its back to the original two children who were on the see saw earlier on.
Continuity mistake: In the scene in the Jaguar when they get the BBC bulletin that the farm has been found, there is a Hillman Super Minx immediately behind them. Next shot it is missing but returns later.
Continuity mistake: The special mortar that Julia's husband gives her doesn't look the same as the one Julie sees in the kitchen display. It's indicated that it's the same one.