I cannot possible pick one! So, I guess, in no particular order:
The Lord of the Rings trilogy
Robin Hood: Men In Tights
Spaceballs
Back to the Future trilogy
Life of Brian
The Hollow Crown - Henry V
Avengers
Thor
Stick It
Monty Python and the Holy Grail
Jurrasic Park
Nightmare Before Christmas
Gremlings
Constantine
And that's all I can think of right now. Um. Yeah. I have actually seen all of those over and over and I never get tired of them. I love film. I work with it so I watch a whole lot of it. (So much so I've actually started a
blog to recommend real fantastic ones.)