Harry Allen (actor) film role was in the 1923 silent film, "The Last Moment", in a supporting role. In his career Allen appeared in over 100 films, mostly in supporting and smaller roles. Some of the more notable films he appeared in include: "Of Human Bondage" (1934), starring Bette Davis and Leslie Howard; the Marx Brothers' classic, "A Night at the Opera"; the original "Mutiny on the Bounty" (1935), starring Charles Laughton and Clark Gable; William Wyler's 1942 Academy Award-winning film, "Mrs. Miniver", starring Greer Garson, Walter Pidgeon, and Teresa Wright; "Jane Eyre" (1944), starring Orson Welles and Joan Fontaine; the Mickey Rooney
Charles Laughton and José Ferrer as Greenwald based on the original novel, but did not affect that film's box-office performance. Laughton also directed a staged reading in 1953 of Stephen Vincent Benét's "John Brown's Body", a full-length poem about the American Civil War and its aftermath. The production starred Tyrone Power, Raymond Massey (re-creating his film characterisations of Abraham Lincoln and John Brown), and Judith Anderson. Laughton did not appear himself in either production, but "John Brown's Body" was recorded complete by Columbia Masterworks. Laughton returned to the London stage in May 1958 to direct and star in Jane Arden's "The Party"