A few mistakes

Keep an eye on John Turturro when he is cutting the piazza. Not only did he not cut it, the cutter barely comes in contact with the pizza. They probably kept using the same fake pizza over and over again to save money on props!

Also, they said at the beginning that it was Sunday. Then why was a mailman delivering mail (the first time we see Mookie walking down the street)?

One more -- when Mookie is arguing with his sister about not going into the pizzeria anymore, she says something like, "I'm a grown man" before correcting herself. Or she might have said, "You're a grown woman," before correcting herself. I forget exactly which one, but it was something like that.