Is there an actual definitive list of all the changes that Whedon made to the movie? I'm reading articles online now where Snyder is saying that only 1/4 of what he filmed ended up being used. If I'm reading things correctly, Justice League was initially planned as two movies, with Steppenwolf as the bad guy for the first film, leading into Darseid for the second. Then the film was reworked into a stand alone film with a post credits scene that would set up a second film. So, Snyder goes ahead and films Justice League and turns in a supposedly three hour rough cut of the movie at which point the studio mandated a movie time of about two hours and a lighter tone. Snyder goes to work on editing and during the editing process has to leave for personal reasons at which point Joss Whedon is brought on board to radically reshape and restructure the movie. I guess what I'm trying to say is that I'm finding it somewhat hard to believe that there's enough extant footage lying around to make this a four hour movie, let alone a six part miniseries.