In a case of life imitating art, Birdman soared in its bicoastal debut for former Batman star Michael Keaton , who plays a washed-up superhero movie star trying to rehabilitate his career by launching a show on Broadway. The dark comedy, from director Alejandro Inarritu , grossed an estimated $415,000 from four theaters in New York and Los Angeles for a whopping screen average of $103,750, the best showing so far this year after Wes Anderson ‘s The Grand Budapest Hotel , which posted a record-breaking theater average of $202,792 earlier this year.