How Green Was My Valley is a BBC Television serial based on the novel by Richard Llewellyn, and features one of the last performances by Stanley Baker. It was first shown in the UK from 29 December 1975 in six weekly parts. Producer Martin Lisemore also cast Siân Phillips in his next production, I Claudius (1976). Phillips won a BAFTA award for best actress in 1976 for her portrayal of Beth Morgan. The series was co-produced by 20th Century Fox as they owned the rights to the novel and had produced the 1941 film.