It is incredibly difficult to choose the greatest movie aliens of all time. You could pick a handful of great aliens from any Star Wars or Star Trek film alone! But there are some that have become so famous, they are the stars of the film (or films) they appear in. Here are some of the greatest movie aliens of all time.

25 Of The Most Famous Movie Aliens

Whether you believe or not in the existence of life outside Earth, it could not be denied that aliens heighten the appeal of any film, especially for sci-fi fanatics. Interesting video rundown.

E.T. - phoning home since 1982

Image of E.T.

Dan the Info-man
E.T.'s species has appeared in other films. Watch out for them in Star Wars: Episode I – The Phantom Menace (in the Senate chamber background)!

Predator - hunting prey since 1987

Image of a Predator.

Dan the Info-man
These aliens are also known as Yautja or Hish-Qu-Ten. They have appeared in films fighting the Xenomorphs - which never ends well for anybody!
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