An evil alien brain, bent on world domination, takes over the body of an atomic scientist, while a "good" alien brain inhabits the body of the scientist's dog and waits for an opportunity to defeat the evil brain.
Alien³
1992-05-22
Alien Resurrection
1997-11-12
The X Files: I Want to Believe
2008-07-24
The Cell
2000-08-18
The Angry Red Planet
1959-11-23
Cloverfield
2008-01-15
2001: A Space Travesty
2000-10-31
Cannibal Apocalypse
1980-08-04
Treasure Planet
2002-11-26
115
2025-01-15
The Lashman
2014-04-19
Imitation Girl
2017-03-04
Slither
2006-03-31
Zathura: A Space Adventure
2005-11-06
Evil Alien Conquerors
2003-12-03
The Cabbage Soup
1981-12-02
Species
1995-07-07
Mad Max Beyond Thunderdome
1985-06-29
The Hitcher
1986-01-17
The Blob
1988-08-05