The Texas Chain Saw Massacre (1974, Tobe Hooper) - 83 min.
This is one of my very most favorite horror movies. I love the atmosphere, I love story, and most of all, I love Leatherface and his kooky family. This is a horror classic that everybody should see at least once. The Texas Chain Saw Massacre is also a great representation of 70's horror: lots of screaming. My favorite scenes in the film are when Leatherface first shows up, and the chain saw ballet at the end. I use some clips and sound from this one in my "Evolution of Terror" video: http://www.youtube.com/watch?v=yktuaMyi8xM