Which actor appeared in more than fifty British films, including the 1946 thriller Green for Danger?
Green for Danger (film):  The film was directed by Sidney Gilliat and stars Alastair Sim, Trevor Howard, Sally Gray and Rosamund John. Alastair Sim: Alastair George Bell Sim, CBE (9 October 1900 – 19 August 1976) was a Scottish character actor who began his theatrical career at the age of thirty, but quickly became established as a popular West End performer, remaining so until his death in 1976. Alastair Sim:  He also appeared in more than fifty British films, starting in 1935.
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