Go to Special Features and enter. Go to the game and play game. If you do well on the game, you receive a code. (The code is CHEESE.) Place disk in DVD-ROM. In the right bottom corner, enter the code. This takes you to the Wallace and Gromit website, which has all sorts of fun stuff.
Reviews: DVD Talk also has a review of
Wallace and Gromit: The Curse of the WereRabbit by Randy Miller III.