Margot Robbie, Idris Elba, John Cena, Viola Davis, Nathan Fillion, Pete Davidson and Joel Kinnaman, among so many others. is directed and written by James Gunn — the same mastermind behind films like, and .Here are all the details on how, when and where to watch .The film's theatrical release is Friday, August 6, but beginning Thursday, August 5 at 4 p.m.