Conversation so far:
What was the first film that Rex Harrison starred in?
Harrison's film debut was in The Great Game.
Was is considered to be a success?
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He was best known for his portrayal of Professor Henry Higgins in the 1964 film version of My Fair Lady.
Did this film do well with critics?
CANNOTANSWER.

Question: Did he act in any other films?
Self-contained rewrite: Besides the first film, did Rex Harrison act in any other films?