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Parents Guide

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MPAA Rated PG for mild sci-fi action and some suggestive humor

Sex & Nudity

  • Once when a male hugs another man in public, upon realization the male recoils and is uncomfortable.
  • The movie starts out with a guy and girl parked in a car on an overlook. The girl says "...I'm really not that kind of girl." and the guy says, "and I'm not that kind of guy." They are just about to kiss when they are interrupted.
  • Some minor innuendo throughout. Children will not understand.
  • An officer looks at a woman's chest. She tells him to "keep your eye on the aliens".
  • At the end of the film, two characters share a kiss.
  • In one scene, while the astronaut is laying down, he is covered by nothing but a sheet. When he stands up the sheet falls and it is assumed that he is naked (it's shot from his feet level). One of the other characters says while staring at him naked, "That's a funny place for his antennae!"

Violence & Gore

  • Alien brains are shown in jars after an implied brain removal surgery.
  • All the violence in this movie is cartoon violence.
  • At the very beginning, an odd-looking alien astronaut, descended from a spaceship, starts firing with a laser-like beam from his only head-sized eye on what it is believed to be Earthmen. Explosions are visible and some characters are disintegrated, but it is later revealed that it was an alien-produced science fiction film and the spectator acknowledges that the men in the film were actually not human, but rather Planet 51 natives.
  • Throughout the film characters are shot at.
  • Creatures fire at each other then are electrocuted.
  • An alien lizard/bug is squashed.


  • One use of the word "friggin'"
  • When trying to say the word "Astronaut" a character says "Ass" then another character jumps in with "tronaut". It's very subtle and most kids would not get it.
  • "Fag" was implied in one scene, but not actually said.

Alcohol, Drugs & Smoking

Frightening & Intense Scenes

  • The opening scene with the alien invasion could be considered by some children to be a scary.


The Parents Guide items below may give away important plot points.

Frightening & Intense Scenes

  • A man in a spacesuit walks into a fierce fire to save an alien. Though the scene is meant to heroize the astronaut, it may be a frightening or at least impressing to some people.
  • The human astronaut is tied to a bed and then an alien scientist is approaching the head of the astronaut with a noisy electric disc saw in order to remove his brain.

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