HOLIDAY AFFAIR - Even though he recently lost his job as a department-store clerk, Steve Mason buys an electric train set for a child he scarcely knows. It must be Christmastime. Robert Mitchum and Janet Leigh are warmly matched in Holiday Affair, a seasonal favorite scripted by Isobel Lennart (later to adapt Mitchums The Sundowners) and directed by Hope/Crosby road movies veteran Don Hartman. Mitchum plays Mason, who helps a child who would otherwise find disappointment under the Christmas tree. The boys war-widow mom (Leigh) notes the gesture, and she is drawn to the handsome stranger. But will she abandon the security that comes from dating a prosperous attorney (Wendell Corey) for the charm of this unemployed man who puts his money where his heart is? Run time : 1 hour and 27 minutes