They don't always come in peace. In fact, over the years, Hollywood has made it pretty clear that, most of the time, they come with deadly intentions. Here's our roundup of 10 close encounters of the deadliest kind.
Movies referenced in our deadly alien roundup:
10. Attack the Block
9. The Blob
6. War of the Worlds
5. Independence Day
4. The Thing
2. Invasion of the Body Snatchers (all)