“You’re going to get taken on a journey with Jared that I don’t know that everyone’s ready for but I think it will be amazing,” Snyder told USA Today (via Squareeyed), having kept a close eye on the production because of his involvement in fellow DC movie Batman v Superman.
“The commitment to the role, you’re going to see that really shine through in a way that you’re not used to seeing actors in movies really go all the way with [in] every little moment and every little breath,” said Snyder.
Leto’s co-stars apparently “kept their distance” from the Joker actor while making the film, according to its director David Ayer.
“The hairs stand up on the back of your neck,” Ayer said of being on-set around Leto, who stayed in character throughout filming – and sent co-star Margot Robbie a rat as a “present” before production started.
“It’s a scary character to tackle. This iteration of him, people will realise there really is a continuity of history – there is a lot of respect for what The Joker represents, who he is as a character. He is the best-known villain in fiction so there’s an incredible responsibility there to also be faithful to what he is but at the same time push him into this next world, next time, next phase.”