The Skywalker Sound Studio uses 130 Mac Pro racks, 50 iMacs, 50 MacBook Pros and 50 Mac minis running Pro Tools
The Skywalker Ranch is a vast facility owned and conceived by George Lucas, the creator of the epic Star Wars universe. The cornerstone of the ranch is Skywalker Sound, a world-class sound design, editing, mixing, and audio post-production facility that uses a wide variety of Macs to get the job done.
Source: patentlyapple.com