On this edition of the Cinema Clash: The superhero force du jour, JUSTICE LEAGUE; two must-see potential Oscar contenders, THREE BILLBOARDS and MUDBOUND; a heartwarming family film, WONDER; a faith-based cartoon for young ‘uns about the first Christmas, THE STAR; a French drama about AIDS activism in the early 1990s, BEATS PER MINUTE (BPM); a documentary on the life and potential legacy of BILL NYE: SCIENCE GUY; and a small indie (with a rugged Matt Bomer) about father-son bonding in Big Sky Country, WALKING OUT.