Martin Scorsese isn't the pinnacle of kino
Oof.
And frankly, Marty's adaption is radical and good insofar as it centers the narrative away from the mystery and white saviors (and interrogates the readers/viewers consumption of such narratives); much more likely he got it at a Hudson News for a flight on recommendation from his step father, liked reading about the FBI, and was disappointed with the movie, as it made him very uncomfortable.