It was reported that Jonah Hill was looking to make $10 million for appearing in The Batman, $5 million more than Robert Pattinson, the man bringing Bruce Wayne to life, would be paid. It wouldn’t have been the first time an actor playing a villain in a Batman movie would earn more than the actual Batman actor, as that’s what happened with Jack Nicholson on 1989’s Batman, but in this instance, it’s a moot point since Hill has departed.
It’s a good bet that the main reasons negotiations fell through is the same reason so many do: money.