This is, I think, the movie that has so many people acting like violent children, all bent out of shape because someone hurt their widdle feelings. (If I picked the wrong movie please leave a comment.)
The proper response is: more. More more more more more. Desensitize these idiots until they're panting from every time they have to get all frothy about someone defaming the prophet. This is what happened to Christians in this country - yes, they still try to force their values on us through politics, but walk around with an anti-Christian T-shirt, and no one bats an eyelash anymore - as it should be. So to the rioting idiots in Libya and Egypt and elsewhere: GET OVER IT YOU BABIES. IT'S THE TWENTY-FIRST CENTURY. NO ONE'S PET PEEVES ARE SACRED ANYMORE.
Think that's a little harsh? How about this: I'm offended by socialist movies. So whenever someone makes a movie defaming Adam Smith or Milton Friedman, I'm going to attack their embassy, and try to destroy property and human life. Is that okay? If you're even remotely okay with people destroying life and property because their sensibilities are offended, you have to tell me why I'm not allowed to do the same thing whenever my feelings are hurt. You also have to explain not only why you apply different rules to different people, but what qualifies YOU to decide this for everyone else in the world.
Of course, you're free to disagree with me, tell me I'm a jerk, and tell other people to stop reading my blog. But you're not free to burn my house down or kill me. The same applies to me where your own expression is concerned, as well as to every other grown-up in the civilized world.