Here's a cute idea. An alien visits a planet and causes mass hysteria among the population - only, the alien is an American astronaut (voiced by Dwayne Johnson), who lands on a world populated by green-skinned creatures. Two young sci-fi fans, Lem (Justin Long) and his best friend, Skiff, have to hide the astronaut from the evil Professor Kipple (John Cleese) and General Grawl (Gary Oldman), who are convinced the "alien" wants to turn everyone into zombies. A charming spoof of cold-war alien paranoia, this is visually inventive and full of action, but could do with more humour.
U, 90 mins