Every new update about The Flash and the DC Universe's future points toward how incredible the movie must be after all. Warner Bros. took nearly a decade to make a solo film for The Flash that stars Ezra Miller. While The Flash was mired in various controversies coming from its main star for quite some time, the outlook on the film continues to change as its summer release date draws closer. This is especially true after Warner Bros. debuted the full The Flash movie trailer, highlighting Michael Keaton's Batman return, Sasha Calle's Supergirl debut, and a story that mixes heart and action with the multiverse setting.