Donald Robert Ivar Campbell (8 September 1904 – 19 May 1985) was a New Zealand-British screenwriter and film director.^[1]

Campbell was born in New Zealand in 1904 to Lt-Col Robert Ormus Campbell and Beatrice (née Cadell).^[2] . He married Sheila Milligan on 14 July 1934 at Littleton Church, near Shepperton. In 1939, he was a farmer in Devon, living with his wife, a film scenario writer, and widowed mother, Beatrice.^[3] In 1950 he appears to own a fishing boat.^[4]

In 1951, he was living at the infamous Knowstone Manor in Devon, a swastika-shaped farmhouse built in 1938 by a German fascist.^[5][6]

In 1960, Campbell and his wife purchased Tiverton Castle in Devon which was inherited by his nephew, Angus, in 1985.^[7] Sheila Campbell is credited as a writer on Belles of St Clements, Feather Your Nest and Expert Opinion.^[8]

• Reunion (1932)
• Song of the Plough (1933)
• The Wishbone (1933)
• Paris Plane (1933)
• Doss House (1933)
• She Was Only a Village Maiden (1933)
• The Diplomatic Lover (1934)
• Bypass to Happiness (1934)
• Designing Women (1934)
• The Mad Hatters (1935)
• Expert's Opinion (1935)
• The Belles of St. Clements (1936)
• Grand Finale (1936)
• Feather Your Nest (1937)
• Captain's Orders (1937)
• Too Many Husbands (1938)