I find that this is very much a personal issue. I wouldn't have a problem scoring a film like this, but I can absolutely understand people who would be in doubt. For me, the only real issue that puts me off is not having any artistic freedom, which also seems to be something you're concerned about. If a project offers you a chance for artistic development, I would take it more or less without question (of course in our finance driven society, as superficial as it might be, money is always a factor in most projects). So if the director is a reasonable person with sufficient insight into music and understands your goal to further yourself as an artist rather than simply being a somewhat skilled work-for-hire, I would set aside your moral objections to the film - the shock factor might drive you to lengths that might completely surprise you and open up a whole new facet to your technique you might otherwise miss out on. Hope this helps. Mihkel.