I found a weird way to crash the game on my Wii. If you go into the stunt park and start a mission, then go over to Trixie and open the tutorial the game will crash.
Topic on Talk:Toy Story 3: The Video Game
Unfortunately, this wiki is not dedicated to the Wii, the Wii U, the Switch, the GameCube, or any other Nintendo console - or any other console for that matter. You would be able to get better help for this if you posted to a Wii or Nintendo-centric forum or wiki.