Ever since the worldwide success of The Avengers in 2012, movie studios have been racing to create their own shared universe. Disney has a whole crop of superheroes and story lines with Marvel Studios under its corporate umbrella, so it made sense that Warner Bros. would follow suit with its own superheroes from DC Entertainment. Unlike Disney and Marvel, however, WB doesn't plan to combine their TV properties with their superhero movies in the DC Cinematic Universe.
It seems like the smarter way to go, considering that it must be harder to juggle multiple movie story lines with TV and Netflix offerings. DC's approach appears to be simpler with the idea of separating superhero TV and movies, so the entire shared universe doesn't get overly complicated or convoluted. Since DC TV shows and movies don't take place in the same universe, there are two versions of The Flash. Although we don't know much about the movie version, its star has offered a little bit of insight into what he hopes to bring to the "Scarlet Speedster."
In an interview with EW, Ezra Miller explained how his version will be a more flawed version than his TV counterpart, played by Grant Gustin. While both actors are playing the Barry Allen version, Miller says his character will be grounded in reality, as a way to balance between his heroism and humanity:
"I’d like for it to be an exploration of a human being, a multi-dimensional human being, to speak. I’d like the character to have many dimensions. But really, I’d like him to have the usual dimensions we know and love, and then some extra ones that are part of the amazing consideration of this superhero. I hope to realize him as a person, and I think what’s most exciting for me in superhero mythologies is when we feel the humanity of someone who is heroic — or the heroism of someone who is a flawed, deeply human person.”
The DC Extended Universe seems considerably grittier and darker when compared to the superhero TV shows from DC Entertainment, so it makes sense that the movie version is more complex and nuanced than his TV counterpart. That said, it just seems that having two versions of The Flash might confuse the average movie-goer or TV viewer.
At the moment, Seth Grahame-Smith (Dark Shadows, Abraham Lincoln: Vampire Hunter) is the frontrunner for helming the new Flash movie, which would be his directorial debut. It was originally developed by The LEGO Movie directors Phil Lord and Chris Miller, who have committed to Disney and Lucasfilm's standalone young Han Solo Star Wars movie instead. It's unclear when The Flash would be introduced in the DC Cinematic Universe, but it's likely that we'll see the "Crimson Comet" in Justice League Part One in 2017 before he gets his own movie the following year.
Batman V Superman: Dawn of Justice opens on March 25, 2016, which is followed by Suicide Squad on August 5, 2016; Wonder Woman on June 23, 2017; Justice League Part One on November 17, 2017; The Flash on March 23, 2018; Aquaman on July 27, 2018; Shazam on April 5, 2019; Justice League Part Two on June 14, 2019; Cyborg on April 3, 2020; and then Green Lantern Corps. on June 19, 2020.