“There were so many scenes that got cut from the movie, I couldn’t even start,” he said in one of those interviews with IGN.
It's not just him being sore about having scenes cut though. Rolling Stone mentioned that there was so little of his Joker that his part was basically reduced to a "glorified walk on”.
“I think that the Joker … we did a lot of experimentation on the set, we explored a lot. There’s so much that we shot that’s not in the film," Leto continued during the IGN chat.
“If I die anytime soon, it’s probably likely that it’ll surface somewhere. That’s the good news about the death of an actor is all that stuff seems to come out.”
Morbid as Hell. But fair...