LOS ANGELES — Jonah Hill has always wanted to direct. He worships filmmakers and has treated what he describes as an “accidental” but “wonderful” 15-year acting career as a partial film school, learning from people like Bennett Miller, who directed him in “Moneyball” and Martin Scorsese on “The Wolf of Wall Street.” But Hill didn’t just want to make any film, he wanted to have something to say, and the confidence and “emotional maturity” required to lead people He settled on a coming-of-age story, which he laughs is a …