Widely considered one of the worst movies ever made, Robot Monster is a post-apocalyptic science fiction film that centers upon a small family straining to evade an alien invader driven to exterminate the last vestiges of the human race. Shot over a few days with a shoestring budget, Robot Monster is notable for its hacky editing, sloppy use of dinosaur stock footage, amateurish acting, an "alien communication device" that's merely a bubble machine, and a villain whose costume is a homemade gorilla suit coupled with a Halloween store space helmet.