Three years after the original Justice League film came out, Zack Snyder says he is cutting his own version of the movie.

The 54-year-old director left the production of the original movie before it was finished because of a family tragedy.

Joss Whedon, the director of The Avengers and Buffy The Vampire Slayer, was brought in to complete the superhero movie, but fans complained he made it too light-hearted.

A campaign to #ReleaseTheSnyderCut kicked off on social media on the 2017 film’s release, with fans calling for what they believed was Snyder’s darker vision for the movie.

Snyder revealed his plans during a live online commentary of his film Man Of Steel with British actor Henry Cavill.

The filmmaker also tweeted, telling his 734,000 followers: “This is real.”

Snyder told the Hollywood Reporter the re-version, which he’s working on with his wife and producing partner Deborah, will be “a new experience” and “an entirely new thing”.

He says he has not watched the original film.

The new cut will feature new dialogue, which will be recorded with original cast members including Ben Affleck, Gal Gadot and Jason Momoa.

The re-cut movie – which could be up to four hours long – will stream on HBO Max in 2021. There is also the possibility it could be released in instalments, like a TV series.

A new contender in the now-crowded streaming market, HBO Max launches on 27 May.

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Snyder originally led the 2017 film but left the project to be with his family after his 20-year-old daughter Autumn took her own life.

The first film, which was two hours long, was a critical and commercial flop.

Justice League is based on DC Comics characters Batman, Wonder Woman, Aquaman, The Flash, Cyborg and Superman.