Val Guest (11 December 1911 – 10 May 2006) was a British film director, best known for his science-fiction films for Hammer Film Productions in the 1950s, but who also enjoyed a long, varied and active career in the film industry from the early 1930s up until the early 1980s. He was born Valmond Maurice Grossmann in London, England, and educated at Seaford College. Guest's initial career was as an actor, appearing in various productions in London theatres. He also appeared in a few early sound film roles, before he gave up an acting career and moved into writing. For a time in the early 1930s he was the London correspondent for the Hollywood Reporter trade paper, before he began working on film screenplays for Gainsborough Pictures, his first being No Monkey Business in 1935. He wrote screenplays for the rest of the decade, including working on scripts for Will Hay, as well as some film scores, before in the early 1940s becoming a director, with his debut feature in this role being Miss London Ltd. in 1943.