I have many...My family references film quotes a lot of the time and we often title our e-mails with them.
Today, I'll share here: "Me? I tell the truth - even when I lie." (Al Pacino as, "Tony Montana" in Brian De Palma's, "Scarface.")
And how about one of my favorite funny ones written/said by Steve Martin in, "L.A. Story" when his female best friend tells him he's jealous she's a woman and he's not? "No, no, I could never be a woman. I'd just stay at home and play with my breasts all day."