March 23, 2009 11:00 pm Reese Witherspoon Is a Huge Monster “Monsters vs. Aliens” star Reese Witherspoon chats about perfecting her action hero voice, acting out the movie with her kids, Ava and Deacon, and what they think about the film. 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