Roger MacDougall (2 August 1910, in Glasgow – 27 May 1993) was a Scottish playwright, screenwriter and director.^[1]

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MacDougall began writing the occasional screenplay in the late 30s, working both alone and in collaboration with others. Most of his plays were produced during the 50s.^[2] As a screenwriter, his best-known films are The Man in the White Suit (for which he received a 1952 Academy Award nomination^[1]) and The Mouse That Roared.^[3] He was a cousin of Alexander Mackendrick.^[4]

His 1952 play Escapade enjoyed a lengthy run in the West End and was subsequently adapted into a film of the same title.

In 1953, he was diagnosed with multiple sclerosis which eventually resulted in significant disability.^[5]

Through disillusionment with orthodox medical treatments at the time, he developed a diet, loosely based on a paleolithic diet, that apparently returned him to good health and sustained remission. Following this experience, he published a pamphlet describing his diet intended to help other patients to achieve similar results.^{[citation needed]}

• Midnight at Madame Tussaud's (1936)
• Midnight Menace (1937)
• Cheer Boys Cheer (1939)
• Let's Be Famous (1939)
• Law and Disorder (1940)

• The Gentle Gunman (1950)
• To Dorothy, a Son (1950)
• Macadam and Eve (1950)
• Escapade (1952)