Here's what you need to know about this Barry Allen storyline, which was written by DC boss Geoff Johns

Flashpoint is heading from the small screen to the big screen.

At San Diego Comic-Con, Warner Bros.’s upcoming slate indicated that its standalone Barry Allen movie starring Ezra Miller as The Flash will tackle the universe-changing comic book storyline “Flashpoint.”

This isn’t the first time “Flashpoint” has been adapted. In 2013, WB Animation released Justice League: The Flashpoint Paradox, which based on the comic book story. Most recently, The CW’s The Flash adapted the story in its season 3 premiere.

For the uninitiated, “Flashpoint” is a time-twisting 2011 DC Comics crossover event that was written by Chief Creative Officer Geoff Johns, with art by Andy Kubert and immediately preceded the New 52 initiative (which, ironically, just ended in 2016). In the story, Barry Allen wakes up in an alternate reality where his mother is still alive and he doesn’t have his powers, which means he isn’t The Flash. However, those aren’t the only changes.

In this topsy-turvy world, Superman is a scrawny boy because he’s never seen the sun since the government captured him when he landed on Earth; Thomas Wayne is a ruthless version of the Batman because his son Bruce and wife Martha were murdered; Aquaman and Wonder Woman are at war; and Cyborg is the world’s most popular superhero — like we said, topsy turvy.

The twist in the story is that Barry discovers he caused this alternate reality when he traveled back in time to save his mom from being murdered. So, Barry embarks on a quest to regain his powers and restore the timeline before Aquaman and Wonder Woman’s war destroys the planet, which is a likely possibility. While he succeeds in defeating the Reverse Flash, his attempts to fix the timeline still led to the continuity changes that were trademarks of the New 52, which rebooted the entire DC Comics universe.

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WB has had a hard time getting its Scarlett Speedster feature film off the ground as the project has already gone through two directors, Dope‘s Rick Famuyiwa and Seth Grahame-Smith. In May, sources confirmed to EW that Robert Zemeckis was the front-runner to direct. Furthermore, Phil Lord and Christopher Miller, who were recently removed from the young Han Solo movie, are also reported to be in consideration for the project.