George Clooney, Eva Longoria, Kerry Washington, Mindy Kaling, Don Cheadle and more stars are teaming up for a good cause.Along with principals at the Creative Artists Agency, the group of high-profile celebrities are creating a new high school in Los Angeles — the Roybal School of Film and Television Production, housed within the Edward R. Roybal Learning Center — to help teenagers in underserved communities train for jobs in Hollywood.