I saw a production of Austin Pendleton's Orson's Shadow Sunday night (if you're in the Chicago area---it just opened at the Chicago Center for the Performing Arts, will run through mid-October). It's about the 1960 London production of Rhinoceros. While it completely glosses over the mind game Olivier played on Orson, it is reasonably honest and sympathetic. Great performances, the actor playing Orson has the speech pattern down very well (but looks more like Raymond Burr than Orson). If you're not a fan, probably not very interesting---but if you are, a terrific way to spend an afternoon.