What makes Judd Apatow, Ali Wong, Kevin Hart and other comedians laugh?

What makes the funniest people in the world laugh? We asked a host of comedians from the Just For Laughs festival in Montreal and got some great answers. From the accidental physical comedy of Shaq’s infamous TNT fall, to the dry British humor of HBO’s Extras, comedians like Kevin Hart, Judd Apatow, and Ali Wong offer up their favorite moments of comedic inspiration.