LAS VEGAS - MARCH 31: Actor/comedian Robin Williams arrives at the premiere of "Monty Python's Spamalot" at The Grail Theater at the Wynn Las Vegas March 31, 2007 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
LAS VEGAS - MARCH 31: Actor/comedian Robin Williams arrives at the premiere of "Monty Python's Spamalot" at The Grail Theater at the Wynn Las Vegas March 31, 2007 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)