Critical response to "The Last Mimzy" was mixed, and ranged from saying that it holds appeal for family audiences—especially children—to describing the storyline as distracting. On review aggregator Rotten Tomatoes, the film has an approval rating of 55% based on 126 reviews, with an average score of 5.8/10. The site's critical consensus states, ""The Last Mimzy" makes efforts to be a fun children's movie, but unsuccessfully juggles too many genres and subplots—eventually settling as an unfocused, slightly dull affair" On Metacritic, the film had a score of 59 out of 100, based on 25 critics, indicating "mixed or average reviews".