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Apart from Doctor Who, Hartnell also participated in the Carry on franchise. The Carry on franchise is a British comedy film series that began in 1958 and continued until 1992. The series is known for its bawdy humour and sexual innuendo. Hartnell appeared in three Carry on films: Carry on Nurse (1959), Carry on Cleo (1964), and Carry on Cowboy (1965).