Other mistake: Throughout the movie, Nick Nolte and Barbra Streisand take cab rides. There are thousands of cabbies in NYC, so how come they always get in a cab with the same license plate?
Continuity mistake: When the kid is playing his violin in the train station, his case at first (shot from a high angle) is about three feet away from him and then when the shot is close the case is right next to him.
Continuity mistake: When Tom is in Lowenstein's office, he picks up a nic-nac from a shelf - a small head - and he goes to put it back, but he doesn't, and then, suddenly, he has his hands in his pockets, and the head just reappears on the shelf without him putting it back.
Continuity mistake: Bernard and Tom are in the park playing football, when Bernard, with Tom behind him, catches a ball thrown to him from someone off to his left and ahead of him, but there's no-one there to throw it. Before this shot, we are in Lowenstein's office, and Tom has just thrown her a football, which, after complaining about her nails, throws it back to Tom, but Tom doesn't catch it, Bernard does, in a shot made up in the editing room.