Complex sentence: In 1971, Cushing withdrew from the filming of "Blood from the Mummy's Tomb" following the death of his wife, actress Violet Helen Beck (8 February 190514 January 1971), to whom he had been married since 1943.
Split into simpler sentences: In 1971, Cushing withdrew from the film "Blood from the Mummy's Tomb" when his wife died. He and actress Helen Beck (8 February 1905--14 January 1971) had been married since 1943.