[ad_1] This piece was originally published in June. We are recirculating it now timed to The Flash’s streaming debut on HBO Max. Warning: many spoilers ahead! One of the major selling points of The Flash is the return of Michael Keaton, who last played the Caped Crusader in Batman Returns more than 30 years ago.… Continue reading ‘The Flash’ Ending and George Clooney Cameo, Explained