The Charles Allis Art Museum continues its tribute to British actor Robert Donat tonight with a 7:30 p.m. screening of his best-known film, The 39 Steps. In this 1935 Alfred Hitchcock adventure, which earned the actor his first Oscar nomination, Donat had the chance to flaunt his leading-man charisma and his dry British wit, playing an innocent man on the run who is memorably handcuffed to a beautiful woman who doubts his story. Although Hitchcock took a clear liking to the actor, Donat's commitment to the theatre and his ill health prevented him from filming a follow-up with the director.