Here's a fantastic short documentary by Lauren Millar featuring animator and VFX supervisor Steve 'Spaz' Williams. There's also some great footage from the old ILM studio location in San Rafael, CA. Funny enough I was actually in 'The Pit' room a year or so ago when I visited Creature Art & Mechanics Digital. All that's left in the room is a polaroid picture of Steve's studio space complete with Canadian flag.