Cardinal Hayes is a high school in the Bronx, and after a year of minor seminary — a tryout for the priesthood; once a regular stop for bright Catholic boys of limited means — Scorsese went there. (Don DeLillo, the novelist, was a few years ahead.) Rejected by Fordham University because of poor grades, Scorsese enrolled at N.Y.U.’s Washington Square College and its film program. From there, he plunged into the ’60s: a concertgoer at the Fillmore East, an expatriate in England and Holland, an assistant director at Woodstock (he became an editor on the concert film) and then a maker of his own movies — “Who’s That Knocking at My Door,” about a young man in the suddenly liberated ’60s whose Catholic principles keep him out of bed with his girlfriend, and “Boxcar Bertha,” a film about a female rabble-rouser “free’er than most.”
—The Passion of Martin Scorsese, The New York Times Magazine, 21 Nov 2016
I always find it interesting (and validating) how many successful people were crappy students.