(After she went to go get popcorn during an old noir movie)
Catherine: Hi, what'd I miss?
Grissom: Murder, seduction, deceit. The usual.
Catherine: Mmm. This one of your favorites?
Grissom: Actually, I'm not a big fan of noir.
Catherine: Okay...Well, what do you like?
Grissom: I like silent movies. (Catherine stops and turns to look at Grissom. With a small smile on his face, Grissom glances at Catherine, then turns to look at the screen)