How 'Zack Snyder's Justice League' reverses Joss Whedon's 2017 version

For years, Zack Snyder fans have been left to wonder what exactly had changed from his original vision for Justice League to what debuted in theatres in 2017. Now we know. Photos: Warner Bros

For years, Zack Snyder fans have been left to wonder what exactly had changed from his original vision for Justice League to what debuted in theatres in 2017.

All anyone's known for certain was that in May 2017, Warner Bros. announced that Snyder was leaving the film due a family tragedy, and Joss Whedon – writer-director of Marvel Studios' beloved blockbuster The Avengers and less-beloved, less-blockbuster-y Avengers: Age Of Ultron – was taking over as screenwriter and director.