The Texas Chainsaw Massacre - Directed by Tobe Hooper. Five friends visiting their grandpa's old house are hunted down and terrorized by a chainsaw wielding killer and his family of grave-robbing cannibals.
Roger Corman presented a post-apocalyptic future with plenty of rubber in The Day the World Ended. For a change, the mutant monster is featured in the poster. The critter is a lot less nimble in the actual movie.