Ben Stiller with snow in his beard in The Secret Life of Walter Mitty. My dad and my father-in-law couldn’t be any more different. They’re both unique individuals and I love them for different reasons. Be that as it may, I find that both my biological pa, and my pa through marriage love the same Ben Stiller movie, and that’s The Secret Life of Walter Mitty. I find that strange since neither of my fathers like Ben Stiller when it comes to his other movies. But Walter Mitty? Oh, man.