Say hello to September with this week’s movie features! From war heroes, robbers, ghouls, teenage sweethearts and a monstrous clown, the cinema will surely be welcoming a number of couch potato personalities. Get ready for “It,” based on Stephen King’s 1986 horror novel, a team of Navy SEALs on assignment in “Renegades,” a film dubber in “FanGirl FanBoy,” the dark …