Invader ZIM

An alien named Zim from the planet Irk is sent on a secret mission to conquer Earth, not realising that his leaders were just trying to get rid of him and hoped that he would die. Once there, Zim manages to disguise himself as a human child, but one boy named Dib sees through his disguise.

Invader ZIM is a 1999 adventure horror movie, starring Andy Berman, Melissa Fahn, Richard Steven Horvitz. It holds an IMDb rating of 8.4/10 from 23,938 votes and runs 24m.