hollywood use *BSD/linux for rendering farms, and cinepaint(formerly known as filmgimp) are used for backend tasks, and doesn't consider it a desktop OS yet, only a server one: no demand, no supply. when linux surpasses Mac OS they MIGHT consider creating a licensed DVD playback program, and supporting linux.
they will always support Mac users, because, alot of their people use them, and windows is the statistical majority of computer users, leaving linux in the cold for now.
not to mention the variety between the different distro's that would make support a nightmare.
