Ben Stiller's Walter Mitty: when will Ben start being funny again?

The Secret Life of Walter Mitty may be a work of art or a classic short story. But, Ben Stiller is treating it like a Michael Bay treatment in this trailer for his upcoming remake of the Danny Kaye movie. Neither film has anything to do with James Thurber's original short story as much as they like to think, but it doesn't hurt to pretend that they do.