In January 2006, it was reported that producers were in discussions about setting and shooting most of the film at the Wynn Las Vegas. Clooney had previously hoped to film it at his then-upcoming Las Ramblas Resort in Las Vegas, although the project would not have been ready in time for production. In March 2006, it was reported that the film would be shot in a fake casino that would be constructed on five Warner Bros. sound stages. Filming was expected to begin in Las Vegas and Los Angeles in July 2006. Al Pacino joined the cast in April 2006.