Small Time Crooks (2000)

Revealing mistake: At the start of digging the tunnel, one of the characters (I think Denny) calls Woody Allen, "Woody" by accident.

Factual error: Easy to spot. The chocolates are referred to as Belgian at the beginning of the movie, but you can see they are in fact Baci by Perugina (from Italy).

Continuity mistake: During the party, Chi Chi starts off wearing pants, then she has a dress on, then it goes back to pants.

Ray: I think she's developing a crush on her teacher, David.
May Sloane: Yeah. Well, you know, he's very good-looking, and he's really bright and very charming. And he's very elegant.
Ray: Okay, May, I got the picture. It's all right.
May Sloane: Well, when you're right, you're right.
Ray: Thank you.

Ray: You know? Frenchy eats frog's legs.
May Sloane: It's supposed to taste like chicken.
Ray: Rabbit.
May Sloane: Rabbit tastes like frog's legs?
Ray: No, forget it, forget it.

Denny: Ray really is a genius, Frenchy.
Frenchy: Compared to you, this chair is a genius, Denny.