I saw Planet 51 with my 3 year old son and we both thought it was excellent! It was just the right length to keep my 3 year old's attention and contained interesting and funny characters! There was no bad language to mention or adult humor. Excellent movie! We will probably buy this one on DVD!
Good movie for children! I gave this movie 4 stars because I did not like that it used "stupid" and "idiot" in the movie. Parents often try to prevent thier toddlers from using such words and movies should be more sensitive to it.