Comedian? Ben Stiller play a director and main actor.
Walter Mitty is negative asset manager(which means managing and printing photographer's photo nega), in the famous magazine LIFE. But they decided to end printed magazine and move to digital publishing. For the very last number of LIFE magazine cover photo, famous active photographer(Sean Penn) orders Walter to use no.25 of negative asset he took. He has a trouble to find the nega and decide to have a long trip to Greenland to meet Sean...
I have seen many movies Ben Stiller acts, e.g. There's something about Mary, Zoolander, etc. I forgot the movie title but on the airplane watched another one. It's again Ben Stiller and Cameron Diaz, the same as Mary movie. They got just married and visit Laten American island for honeymoon. There Cameron Diaz have an affair with scuba diving instructor, then he find another girl. Nicole Kidman was also on the screen for small role.
Back the trail to this Life! movie, the plot is very simple and it's like a road movie. I can point out some contradicting things in whole plot, but I can tolerate since it's a comedy after all.