The Hilarious Audition Twist: Maggie Gyllenhaal, John Mulaney, and That Ubiquitous 'Young Cop' Ben Affleck's 'Armageddon' Nightmare: Bruce Willis and a Bout of Food Poisoning When Hollywood Gets Hilariously Human: Jeff Daniels' 'Dumb and Dumber' Moment on a Serious Sci-Fi Set The Adorable Secret: Scarlett Johansson's Hilarious Nickname for Robert Redford on The Horse Whisperer Set