Julia Roberts, George Clooney, Emma Stone, Dwayne Johnson, Adam Sandler and Idris Elba are just some of the celebrities ...

Julia Roberts, George Clooney and Emma Stone are among the stars set to attend this year's Venice Film Festival. A total of ...

FILE - George Clooney poses on the red carpet at the premiere of his film "The Ides of March," opening the 68th edition of the Venice Film Festival in Venice, Italy on Aug. 31, 2011.

George Clooney, left, and Brad Pitt pose for photographers at the photo call for the film ‘Wolfs’ during the 81st edition of the Venice Film Festival on Sunday, in Venice, Italy.

Julia Roberts, George Clooney, Emma Stone, Dwayne Johnson, Adam Sandler and Idris Elba are just some of the celebrities ...

FILE - Actors George Clooney, left, and Tilda Swinton joke during the photocall for their film "Michael Cayton" in competition at the 64th Venice Film Festival, in Venice, Italy on Aug. 31, 2007.