Mutant Aliens is a 2001 adult animated science-fiction-comedy film by American filmmaker Bill Plympton.

[1] The film is a spoof of B monster movies, featuring Plympton's own distinctive animation style and gratuitous sex and violence.

Mutant Aliens has shown at a number of animation festivals, but has never had a wide theatrical release.

To gain the people's trust, he tells a touching story of the time he has spent on a planet of mutant aliens.

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