This is the one that started it all! IMO this is the film that inspired Ruggeto Deodato and Paolo Pasolin, and also Lucio Fulci (the eye scene). Indeed, this film is base on surrealism. Personally, I never had the chance to watch it. But the eye scene is very notirous. Hope this baby comes out on DVD soon. I think is only available in VHS.
I just know very little about the film, but I think Un Chien Andalou is about of seventeen minutes long, and is full of bizarre and surreal images that may or may not mean anything. Or might be symbolic depending on how the viewer interprits the images.
Well, this might sound like a poor example: Remenber the Ring? The VHS tape is full of surreal images, so is kinda like that. A movie about art and extreme gore mixed up with some strange unusual images. Does that help?