Yeah I thought that when I caught the trailer for one of the Twlight films. It was like now he's human *whoosh* now he's a wolf *whoosh* now he's a human. It just looks too easy, I like my werewolf transformations to have that idea that every cell in their body has to change and they have no control over it... not 'oh I feel like running around as a wolf for a bit *whoosh*'. You know?