September 16, 2010: Sarah Silverman was in comedic mood when we spotted her arriving at LAX. When asked if Mel Gibson should get his head examined, Silverman responded, "No, I think he's perfect." And on Bristol Palin appearing on DWTS, she commented, "My secret hope is that she gets influenced by the people around her ... that Margaret Cho gets a hold of her and gets in her brain a little." And apparently, Sarah is "replacing Robert Downey Jr." in Iron Man 3!