LAS VEGAS, NV - APRIL 23: Actor Dwayne Johnson (L) and actor/comedian Chris Rock arrive at a Paramount Pictures and DreamWorks Animation event at Caesars Palace during the opening night of CinemaCon, the official convention of the National Association of Theatre Owners, April 23, 2012 in Las Vegas, Nevada. Johnson is promoting his upcoming movie, "G.I. Joe: Retaliation" and Rock is promoting his new animated film, "Madagascar 3: Europe's Most Wanted." (Photo by Ethan Miller/Getty Images)
Can you say power players? The film industry's biggest stars and executives work it at this year's blockbuster event.