How many movies have Arthur Lowe and Graham Crowden acted in together?

They have worked on 5 movies together! Their first movie together was if.... (1968) and was their highest rated movie together. They have not worked together since Britannia Hospital (1982). They are most known for their comedy films together.

Role
Guest Patient
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Professor Millar
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Mr. Duff / Charlie Johnson / Dr. Munda
Role
Stewart / Prof. Millar / Meths Drinker
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Mr. Kemp
Role
History Master