Other mistake: In the scene that begins with "Three Months Later" where Tony and Manny are sitting at the table near the beach watching the girls in bikinis walk by, Manny is attempting to explain to Tony how to pick up women by explaining what "women in this country know and understand". After Manny sticks his tongue out to demonstrate and Tony asks Manny "what the f*ck was that, Mayne?", if you watch Al Pacino's lips as Steven Bauer is talking, you can see Al's lips moving in unison to whatever Steven is saying.
Other mistake: When Tony pulls his arms down from the shower curtain, there are no chains on either of his arms, and at no time do you see them fall in front of him.
Other mistake: Manny is shot in the scene in the motel, but when he is in the bed with the naked lady, there is no sign of any type of bullet wound in his chest, side or arm.