The best of the Spencer Tracy-Katharine Hepburn cycle, not so much for the Garson Kanin-Ruth Gordon screenplay (which lacks the sophisticated bite of Adam’s Rib) as for the magnificently relaxed and graceful teamwork of the stars. George Cukor directed this 1952 film of a hustling trainer (Tracy) who grooms an extraordinarily gifted gym teacher (Hepburn) to be the world’s greatest woman athlete.