Originally Posted by Ohayou
Well, he was responsible for Pixar, not to mention many of the tools used to make films. He's changed the computer world forever.
Just to expand on my previous post: Final Cut (current rev aside) went from being the underdog used by amateurs to being irreplaceable for low to mid-level budget films to being used by heavy hitters (like the Coens) to cut award winning films.
Add to that the Color program which many used for a low cost alternative to far more expensive color grading tools (and which spurred the big boys like Da Vinci into creating lower cost software-based grading tools for Mac) and the iPad which has become almost omnipresent on film sets for any number of purposes, from scheduling to convenient digital storyboards, etc.
Also, Mac hardware is huge in the industry. Most digital compositing and a fair amount of CG animation is done on Mac workstations (albeit CG is generally rendered on Linux or Windows machines), and most screenwriters are Mac people.