Christian Bale was with David O. Russell on Amsterdam before they even had a script
Christian Bale tells The A.V. Club that he and David O. Russell worked on his Amsterdam character together for "years"

For better or worse, Christian Bale and David O. Russell are one of the most successful actor-director pairings in modern cinema. Both have courted controversy in the past for their mercurial personalities (Russell, separately and perhaps more notably, has also been accused of sexually assaulting his niece). Yet Bale apparently thrives in the reportedly demanding environment of Russell’s sets, culminating in their latest collaboration for Amsterdam, premiering October 7.
In an interview with The A.V. Club’s Jack Smart, Bale reveals what keeps him coming back to work on Russell’s movies again and again. “I love the way he approaches them, you know, like you said, he is so singular and unique, which obviously you want from a director, that’s the whole point, is having a fascinating point of view and setting the rhythm and what not,” he says.