I had to make oddish watch both seasons of Spaced to really understand some of the loss ended jokes in SotD! we watch it quite a lot with the surround sound up full blast & have the soundtrack on our CD changers in our cars!

I have a lot of favs

Star Wars Trilogy (none of that crappy pre stuff)
All Kevin Smith films (except Jersey Girl) p.s. watch out in the fall for Clerks 2!!! the trailers are soooo funny
Shaun of the Dead
Nightmare Before Christmas (got the film, books, stuff, soundtrack, video game & jane gets mad when I go into song)
All Tim Burton Films, yes even planet of the grapes!!