Director of Sound Design, Randy Thom, invited the owner of a local Bay Area trapeze and circus school to Skywalker Sound in order to replicate a tight-rope setting on the scoring stage. A trapeze wire was installed, stretching lengthwise across the stage. They jiggled, they banged, they whipped, and they shook. Randy and his team were able to record various types of sound effects as the wire was manipulated in many different ways.