Anyone who likes surrealism probably knows of Salvador Dali. Dali can easily be considered one of the greatest masters of surrealism the world has ever seen, and many of his works have made their way into popular culture or have been referenced to one way or another.
"Un Chien Andalou", or "An Andalusian Dog" is a short film(16 minutes) created by Salvador Dali and Luis Buñuel in 1929. Since it is a surrealist short film, its purpose is not very clear, although the Wikipedia entry for it states that t "Critics have suggested that [it] can be understood as a typically Buñuelian anti-bourgeois, anticlerical piece."
There is not much that I can say about this film, other than I thought it was alot tamer than I was led on the believe, but in the right context can make some very poignant statements. I would suggest taking a look if you are familiar/like Dali's work, and would really just suggest seeing it for yourself since it is a free Quicktime movie or torrent download.