There are a (blessedly) small percentage of whacky people out there who will commit violence in the name of any cause, simply in order to shore up their own foundering egos. If I were Michael Schiavo, or any other individual seen as responsible for Terri's death, I'd keep my back to the wall.
I think any book movie should be boycotted and if he gets any money I hope he doesn't enjoy spending one penny of it! he's a total scum bag.
A very thick armor plated wall at that.