Q: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Context : They Have Changed Their Face (Italian: Hanno cambiato faccia) is a 1971 Italian horror film directed by Corrado Farina and starring Adolfo Celi.
Answer : Corrado Farina
A:
Who was They Have Changed Their Face directed by?