Here are some things that are legitimately superfly in “Superfly”: the vertical hairdo on fabulously named anti-hero Youngblood Priest (Trevor Jackson) and his vast collection of trenchcoats (black leather, brown leather and sheepskin, waxed cotton, sequined); a dirty, murderous cop getting an elaborate martial-arts beatdown; and the fact that Priest’s girlfriends (Lex Scott Davis and...