Let’s face it — extra terrestrials are scary. Most of the following films don’t typically portray our Galaxian brothers and sisters as cute, E.T.-like creatures. Often, they’re evil, blood-sucking, and anxious to steal our beautiful Earth men and women.
In honor of these otherworldly flicks, here are 30 of the greatest invasion films. Don’t call it entertainment — call it survival research for when aliens attack!