May 1, 2009 7:14 pm Trailer: “Transformers: Revenge Of The Fallen” Sam Witwicky, played by Shia LaBeouf, and Optimus Prime return to the big screen to embark on a mission to save mankind when Decepticon forces return to Earth. US & World Videos 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:36 O.J. Simpson's cause of death revealed 25:57 WATCH: ‘Changing Climate' highlights the Philly-area residents who are combatting climate change