Acclaimed French director François Truffaut's third and, for many viewers, best film is an adaptation of a semi-autobiographical novel by Henri-Pierre Roché. Set between 1912 and 1933, it stars Oskar Werner as the German Jules and Henri Serre as the Frenchman Jim, kindred spirits who, while on holiday in Greece, fall in love with the smile on the face of a sculpture. Back in Paris, the smile comes to life in the person of Catherine (Jeanne Moreau); the three individuals become constant companions, determined to live their lives to the fullest despite the world war around them. When Jules declares his love for Catherine, Jim agrees to let Jules pursue her, despite his own similar feelings; Jules and Catherine marry and have a child (Sabine Haudepin), but Catherine still loves Jim as well. An influential film that has grown in stature over the decades, Jules et Jim was often viewed by the counterculture of the 1960s as a cinematic proponent of the free-love movement, but in actuality the picture is a statement against such a way of life. Despite the bond shared by Jules, Jim, and Catherine, their ménage à trois is doomed to fail; and Catherine's inability to choose between the two men leads to tragic consequences for all three.
~ Jason Ankeny, All Movie Guide