This weekend of war movies continues, all day and all night, and the opening movie in prime time tonight is one of the genre’s best and most unusual: 1957’s The Bridge On the River Kwai, the Oscar-winning David Lean movie starring Alec Guinness and William Holden as POWs forced by their Japanese captors to build a strategic bridge. The novel on which it’s based was written by Pierre Boulle, who also wrote the Planet of the Apes novels.