Ezra Miller's The Flash movie won't start filming until 2021, which would be three years after it was originally supposed to release. The movie based on the famous DC Comics superhero is currently set to be directed by It filmmaker Andy Muschetti with a script by Birds of Prey writer Christina Hodson. Miller is set to reprise his role as Barry Allen aka Flash from Justice League in the project, which has been gestating for years now. While other DC movies have come and gone, and others are in active development, one of DC's most famous comic book characters still hasn't gotten their own solo movie.

What exactly is behind the Flash movie taking so long to get made? Unlike the Green Lantern Corps movie, which has seen the same creative team quietly toiling away on the project for years now, the Flash movie has seen itself delayed countless times. This is partially due to mundane factors like Miller's commitments to fellow Warner Bros. franchise Fantastic Beasts. However, it's also due to a barrage of production problems and a sense of creative indecisiveness. This is reflected in just how long it's been since Miller was first announced as Flash. Back in October 2014, Miller was confirmed to be playing the DCEU version of the character with a solo movie set for March 16, 2018.

Related: Fantastic Beasts 3 Could Delay Ezra Miller’s Flash Movie (Again)

Seth Grahame-Smith was originally set to write and direct the movie, but a revolving door of writer and director changes over the past few years have constantly pushed The Flash movie back. And now, with a new set of creatives behind the project as well as Miller filming Fantastic Beasts 3, there has been little movement in getting The Flash movie off the ground. Things were initially looking up back in 2016, but then problems soon followed when Grahame-Smith was let go from The Flash. He was quickly replaced with Dope helmer Rick Famuyiwa, who got so far along into the creative process that he was able to cast Kiersey Clemons as Flash's love interest, Iris West. However, Famuyiwa eventually exited, too, just a few months before filming was supposed to begin.

In that rumored reason for Famuyiwa's departure, we see another major reason why a solo movie for The Flash has taken so long to materialize. Specifically, there appears to be an inability behind-the-scenes to figure out what tone or story to embrace for this project. This has been reflected in how this solo Flash movie briefly turned into Flashpoint, one that would have expanded the scope of its story to the larger DCEU rather than just a story about Barry Allen.

The Flashpoint movie even hired Game Night helmers Jonathan Goldstein and John Francis Daley as directors. Both the production problems and the lack of firm creative direction once again struck The Flash, as lead actor Ezra Miller so heavily quarreled with Goldstein & Daley over the tonal direction of the movie that he teamed up with Grant Morrison to write his own script. That led to Goldstein & Daly leaving and Muschetti taking over. Whether or not the new creative team can give The Flash the firm creative vision it needs to finally get off the ground is something only time will tell. For now, the expansive story of The Flash movie struggling to begin filming does prove to be a saga as fascinating as many superhero movies.

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