The film received generally positive reviews from critics, and on
Rotten Tomatoes, the film holds an approval rating of List of films with a 100% rating on Rotten Tomatoes| from reviews. Tom Cassidy of
Common Sense Media gave the film four stars out of five, saying "an animated alien adventure has learning, empathy, teamwork." Leslie Felperin of
The Guardian give a rate of the film three stars out of five, saying that the animation is "fluent and densely rendered, although sometimes the characters have less subtlety than their surrounding environment. But, compared with the relentlessly noisy animated features coming out of Hollywood, this is refreshingly old-school and innocent." He also noted that the film is "meant to teach kids about self-reliance, cooperation, the value of outdoor adventure and
risk-taking; and the obligatory environmental
sentimentalism is also present and correct." A year later,
Sandra Hall of
The Sydney Morning Herald gave the film a rate of 3½ stars, saying that "a film crafted expressly for small children, but it has subtleties." == See also ==