Stiller, Wiig Hit the AFI Fest Red Carpet for 'Walter Mitty'
Description:Imagine all the things you wish you did but never have. Now imagine doing them. That's the plot of Ben Stiller's new movie "The Secret Life of Walter Mitty". Stiller and co-star Kristen Wiig were on the red carpet for the film's premiere in LA on Wednesday.(1:52)