I doubt you'll see any book on Muhammad as a movie any time soon. A written story is not necessarily sacriligeous ti most Muslims, but depicting a prophet is not allowed for all Muslims, period. Think: can you remember any movies with Muhammad even as a bit character? Not even Bollywood, which caters to Hindu/Urdu speaking audiences, has dared to try that one.
It would be worth the actor's life. Or the animator. On this, Muslims are as serious and as united as they get on anything.