From Star Wars to Invasion of the Body Snatchers, you can watch these '70s sci-fi classics over and over again.

For nearly 50 years, the “Alien” franchise has terrified, thrilled, and fascinated audiences. It all began in 1979 with Ridley Scott’s “Alien,” a claustrophobic horror masterpiece that introduced ...

We’re obligated to include Episode IV here, but it gets the last slot because it’s very difficult to see it in the form in which it debuted in 1977. Unless you have an old Laserdisc, VHS, or the DVD ...