Academy-Award Winning Rhythm and Hues looks at their hybrid CPU and GPU-based image processing workflow for visual effects. They go over the problems with a modern VFX workflow, and how they approached rewriting their content development and image management systems to increase productivity and make better use of their available processing power. This discussion is a bit more technical than some of the other sessions and spends a bit of time delving into how their data structures and workflow are organized.
Most of the time is spent in their compositing software, which uses both CPU and GPU processing, in order to make best use of available processing power.
(and better to have audio you need to turn up, than noisy distorted audio...)