Michael Armstrong (born 24 July 1944 in Bolton, Lancashire) is an English writer and director. Armstrong trained at the Royal Academy of Dramatic Art and was writing and directing films at the age of 22 with the award-winning short,
The Image starring David Bowie and Michael Byrne. The following year, he wrote and directed his first feature film,
The Haunted House of Horror, starring Frankie Avalon, Jill Haworth, Mark Wynter, Richard O'Sullivan and Dennis Price, following it with the notorious
Mark of the Devil, starring Herbert Lom and Udo Kier which exceeded box office expectations in Europe and America on its first release in 1970 and has grown to be considered a cult film. Since then, Armstrong's film credits have included the highly successful sex comedies
The Sex Thief (1973) and
Eskimo Nell (1975), both of which featured Armstrong himself,
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