Inside the Star-Studded White House Correspondents' Bash

Among the celebs cracking up at Obama's jibes at Donald Trump and Matt Damon,  Scarlett Johansson (with beau Sean Penn), Mila Kunis, Anna Paquin and hubby Stephen Moyer, Courteney Cox's estranged hubby David Arquette(with sister Patricia), Chace Crawford, Chelsea Handlerand many more.