Continuity mistake: Near the end, during the scene where Vince Vaughn is standing on the table at the pancake house, the camera cuts to John, and you can see Vince in the windows, with his shirt off, swinging it over his head. The camera cuts back to Vince, and his shirt is still on, THEN he takes it off & swings it around.
Trivia: The last scene of the movie, where Trent sees a woman who he thinks is making faces at him when she's really looking at her baby, was taken from an actual event that happened to Vince Vaughn in an airport, only it was with a man (and Vaughn was freaked out by it, not playing along like in the film.).
Trent: You know what you are? You're like a big bear with claws and with fangs...
Sue: ...big fucking teeth, man.
Trent: Yeah... Big fuckin' teeth on ya'. And she's just like this little bunny, who's just kinda cowering in the corner.
Trent: Yeah, man just kinda... You know, you got these claws and you're staring at these claws and your thinking to yourself, and with these claws you're thinking, "How am I supposed to kill this bunny, how am I supposed to kill this bunny?"
Sue: And you're poking at it, you're poking at it...
Trent: Yeah, you're not hurting it. You're just kinda gently batting the bunny around, you know what I mean? And the bunny's scared Mike, the bunny's scared of you, shivering.
Sue: And you got these fucking claws and these fangs...
Trent: And you got these fucking claws and these fangs, man! And you're looking at your claws and you're looking at your fangs. And you're thinking to yourself, you don't know what to do, man."I don't know how to kill the bunny." With *this* you don't know how to kill the bunny, do you know what I mean?
Sue: You're like a big bear, man.
Rob: Those guys are right. You're money.
Mike: Then why won't she call?
Rob: She won't call because you left. She's got her own life to deal with and that's in New York. She's a sweet girl and I love her to pieces, but fuck her, man. You got to get on with your life. You've got to let go of the past Mikey, and when you do, the future is beautiful.