“The Flash,” the long-in-the-works standalone superhero film that DC co-chief James Gunn called “one of the best superhero movies I’ve seen.” Starring Ezra Miller, the film brings together multiple DC worlds as The Flash races into the multiverse to change the past, crossing paths with Michael Keaton’s Batman from the Tim Burton films, a brand new Supergirl (played by Sasha Calle) and plenty more courtesy of some major cameos and surprises.Right now, “The Flash” is playing exclusively in theaters. But you may be wondering, when is “The Flash” movie streaming on Max? All your questions answered below.The film was released exclusively in theaters on June 16.Like all Warner Bros.