Three Billboards Outside Ebbing, Missouri: Martin McDonagh tells a powerful story in his film, and makes it more interesting by populating the world with unlikable but complex, interesting characters; he tops if off by putting great dialogue in their mouths, lines that can be very funny or painful at times. Acting is uniformly fabulous: it’s always good to see John Hawkes, Clarke Peters and Peter Dinklage, no matter how reduced their screentime may be; Sam Rockwell builds a tough to like character in a showy and very effective performance; Woody Harrelson is as good in a quieter, dignified performance; Frances McDormand is fantastic, projecting rage and sweetness as called for. The film has just a effective, serviceable look, but Carter Burwell’s musical score is moody, beautiful.