The 'Alien' movies

Alien (movie)Sigourney WeaverWinona RyderPrometheus (movie)Aliens (movie)
The Good: The first two "Alien" movies are edge-of-your-seat sci-fi marvels. It's fun to debate whether "Alien" or "Aliens" is the superior film, but we can all agree -- they're both good. The Bad: Sigourney Weaver originally wanted nothing to do with "Alien 3," but somehow got duped into... 20th Century Fox