Some want to be your friend and some want to eat your babies, but the 10 best movie aliens are all out of this world. Whether they dropped by for a visit or we invaded their turf, all of these movie aliens are memorable.

  1. Alien. Let's face it, the Alien from the "Alien" series is one bad ass extraterrestrial. She'll do whatever it takes to protect her babies, and isn't afraid to slime you in the process. The scene of the Alien popping out of John Hurt's chest in the original film is iconic and unforgettable.

  2. Predator. Willingness to simultaneously take on Arnold Schwartzenegger, Jesse Ventura and Carl Weathers while wearing an invisibility cloak makes Predator from the "Predator" series the toughest dreadlocked alien in the universe. While the sequels aren't as good as the original ( they rarely are), Predator keeps his credibility as a lean, mean killing machine.

  3. The Borg. While primarily seen on the various television incarnations of "Star Trek", The Borg did make it onto the big screen in "Star Trek: First Contact."  Resistance is futile, so strap on your cyberparts and get into the hive mind. Assimilating every creature in the universe, is that too much to ask?

  4. Sil. That chick you met at the club is super hot and really into you, too bad she is an alien bent on destroying the human race. Sil from the "Species" series is not the kind of girl you want to take home to mother.

  5. Klaatu. He and his robot sidekick Gort came in peace, bearing gifts, in "The Day the Earth Stood Still" and Klaatu got his thanks in the form of a bullet. In the 1951 version, Michael Rennie's Klaatu was one cool cat.  Keanu Reeves played Klaatu in the 2008 bomb.

  6. E.T. Not every movie alien has to be a negative nellie toward the human race. E.T. from "E.T. The Extraterrestrial" just wants to phone home while avoiding those outrageous roaming charges. Admit it, when you were a kid, you wished your bike could fly.

  7. They. Jealous of that corporate CEO who just got a massive bonus and married a trophy wife? Let your new "They Live" shades show you that he is part of a skull-faced alien race that has been mind controlling the populous  John Carpenter wrote and directed this cult classic.

  8. Optimus Prime. When you ask your friends to help you move, make sure at least one of them is a sentient truck shaped Autobot from the planet Cybertron. This alien from the "Transformers" franchise could come in really handy when you need to fight some Decepticons too.

  9. The Prawns. These goo secreting "District 9" residents look like lobsters, dine on cat food and rubber tires and can blast you to kingdom come with their ARC guns. Unfortunately, they are being held in a prison camp because their spaceship broke down in a bad neighborhood. 

  10. Zaphod Beeblebrox. He was hipster before hipster was cool. In fact, this dude from "The Hitchhikers Guide to the Galaxy" is twice as cool as you'll ever be because his second head allows him to wear two trilbys at once.