Brian Duffield (born November 5, 1985) is an American filmmaker. He wrote and directed the 2026 survival thriller film Whalefall, the 2023 sci-fi horror film No One Will Save You and the 2020 dark comedy coming-of-age film Spontaneous. His previous writing credits include Love and Monsters (2020), Underwater (2020), The Babysitter (2017) and Insurgent (2015). He is known for having multiple spec scripts featured in The Black List, an industry log of highly regarded but unproduced screenplays, including his scripts for Jane Got a Gun (2015) and Your Bridesmaid is a Bitch.
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Early life
Duffield was born on November 5, 1985, the son of Brenda and Brian Duffield. He has two sisters and spent the first nine years of his life in Harrisburg, Pennsylvania. In 1995, he moved with his family to rural Ireland when his parents decided to become evangelical missionaries. He later described the surroundings of the area in which they settled as being completely remote and lacking in popular culture. He attended school in County Kildare; in one classroom, three separate grades were being taught by one teacher, which he described as "very Little House on the Prairie-esque". He moved back to the U.S. upon graduating from high school in 2004.
