Other mistake: When The Chipettes perform their audition for Ian Hawke they are standing on the Jett Records sign on the roof of the Jett Records building. In order for the sign to read correctly from the street, Ian and The Chipettes should have a backwards view of the lettering. In the movie the sign reads correctly from Ian and The Chipettes point of view, meaning that it is giving a backwards view to the street, ie. it is the wrong way round.Damien-Mildury
Other mistake: When Tinker Bell constructs a boat with the playing cards paddle wheel, she uses a clip and a rope to make sure the paddle wheel doesn't start turning. However the rope would only work at stopping the rotation if the wheel turned backwards. Since it turns forward, the rope shouldn't be able to stop the rotation.
Other mistake: When Max is reading the note Mary left on the first page of her book, the words Mary speaks continue on the next page, but Max never turns the page.
Other mistake: When Derek does his final news report the map in the background says both 32 and 99° in Nevada.