David Ayer, director of 2016's Suicide Squad, has revealed the problem with the movie's depiction of the Joker, portrayed by Jared Leto throughout the DCEU. Bringing DC Comics' supervillain team into live-action, David Ayer's Suicide Squad brought together the likes of Will Smith's Deadshot, Jai Courtney's Captain Boomerang and Margot Robbie's Harley Quinn as the DCEU's first Suicide Squad, under the guidance of Viola Davis' commanding Amanda Waller. While Amanda Waller, and potentially the Suicide Squad, are expected to be reinvented for DC Studios' rebooted DC Universe, many are still hoping for David Ayer's original vision to come to light, which may give Jared Leto's Joker a more substantive role.

https://screenrant.com/jared-leto-joker-suicide-squad-biggest-problem-david-ayer/