Zack Sharf Digital News Director Martin Scorsese and Leonardo DiCaprio have been quite open in interviews when discussing the massive “Killers of the Flower Moon” script overhaul that took place during the film’s development. In a new interview with The Irish Times, the director revealed that he and co-writer Eric Roth had been working on the “Flower Moon” script for two whole years when DiCaprio took issue with the approach.