In May 2006 I visited this exhibition at the science museum. Apart from being a thoroughly enjoyable romp, I can recall a section that projected the story of Pixar so far onto an incredibly wide wall. There were no seats, it was basically a long corridor, with maybe 5 or 6 projectors displaying the scenes. At times there were 5 different sections and others the images blended together to form complete panoramas.
Will continue hunting down footage of the installation.