Mistakes
As Chuck first arrives on Planet 51 he takes a few steps. The ground in front of him is clear. As he plants his flag down he steps on a duck which wasn't there before. See more...
Trivia
When the Hazmat team are dropping objects into the containment pod, they drop in a magazine called "G.A." On the cover are a number of titles regarding the making of the movie, including one that reads, "G.A.'s Lifestyle Advice: Go to the Movies to see Planet 51." See more...
Movie Mistakes blog
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Other great sites
Planet 51 (2009) - 1 with picture
starring Dwayne Johnson, Jessica Biel, Justin Long, Seann William Scott (add more)
Genres: Animation, Adventure, Comedy, Family, Fantasy
Screenshots of mistakes that have been online for less than a year are only visible to members, but the rest are available to everyone. Don't forget to check out the picture of the day, updated daily, and the top 30 screenshots too.