Mollie's blind date stresses the importance of a Notre Dame football game on TV by saying "it's the playoffs." In 1989, Notre Dame participated in Division I (now the FBS), which had not yet incorporated a playoff system.
In the cab, on the way to the hospital, Mollie shouts that her water just broke and James looks back apparently seeing a mess, but when she gets to the hospital, her overalls are perfectly dry with no evidence of her water breaking.
When Molly starts hitting James for taking Mickey out without permission, he falls knocking a box of Cheerios which hangs curiously over the counter and has a plastic glass standing upright untouched. After he has removed the splinter, we see the box gone and it is replaced by the same plastic glass fallen down and it's contents spilled over.
When Molly walks into the apartment after James and Albert's fight in the first shot you see a crooked picture to the right of the front door. Then later on it's gone and there's the kitchen cabinet there instead.
During the very last scene James and Mikey go to a hospital to see Molly. While walking into her hospital room you can see it's obviously a set/sound stage when you look up at the top, in the corner(s), you will see it for a few good seconds.