Also known as Planet of Horrors, this film follows a group of astronauts as they travel into space to retrieve the survivors of a spaceship crash. When they arrive on the planet, the crew runs into some hostile aliens who attempt to gorily wipe them out. ~ Iotis Erlewine, Rovi
This movie was actually quite scary at the time. It plays on your fears as the characters get "picked-off" one-by-one through the story. Surprise ending! An equally (more modern) movie is "Pitch Black"