Not sure whether this is a new topic, but give it a try....Watched a B- movie last week "Earth Aliens":

-Earthling: "You've heard of the search for intelligent life in the universe?"

-Alien: "Yes, it exists and they've voted that Earth doesn't meet the qualifications."

There was a thread on this. The AFI or someone came up with a list and we all commented on it. Good thread though, we all have our own to add.

I have a new one, probabaly the funniest short dialog in movie history. This is brilliant.

YouTube - Casablanca 1942 Movie Clip I came for the waters (http://www.youtube.com/watch?v=0gC29ArkGG0)

aww crap another hilarious one! take about timing, they pull this off without any effort

YouTube - Hilarious Casablanca Clip (http://www.youtube.com/watch?v=-Gf8NK1WAOc&feature=related)