“HAPPY BIRTHDAY, CLARK GABLE!” Chained (1934-76 min.). Shipping magnate Richard Field (Otto Kruger) gets the divorce that his younger lover Diane Lovering (Joan Crawford) has been hoping for — just as her shipboard fling with rancher Mike Bradley (Gable, born this day in 1901) leaves her between an old obligation and a new romance. John Lee Mahin scripted this Clarence Brown production. 7:30 p.m