The Top 10 Best Sci-Fi Movies You've (probably) Never Heard Of
#2:  Dark Star (1974)

What It Is Dark Star is the directorial debut of horror and sci-fi legend John Carpenter (if you need me to explain who this is, you probably shouldn't be reading these posts), and while of some of the concepts within can be recognized in his later work, this movie is entirely unlike anything else I've seen him do.  The project was the result of a labour of love by Carpenter and co-writer Dan O'Bannon...