Fox Searchlight has a Throwback Thursday treat: the trailer for 'Birdman Returns!'

Fox Searchlight is having fun with "Birdman." As a nifty Throwback Thursday (#tbt) delight, the studio has whipped up a trailer for "Birdman Returns," one of the fictional sequels that has come to define Riggan Thompson in Alejandro González Iñárritu's "Birdman."