Biography
Brian Duffield (born November 5, 1985) is an American writer-director. He wrote and directed 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 screenplays included in The Black List, including his scripts for Jane Got a Gun (2015) and Your Bridesmaid is a Bitch.
Complete Filmography
Borderline
2025
Producer
After escaping from a mental hospital, a violent sociopath named Paul begins a dangerous rampage targeting Sofia, a world-famous pop star. Obsessed wi...
No One Will Save You
2023
Writer, Director, Producer
A lonely woman battles extraterrestrials who threaten her future while forcing her to face her past.
Cocaine Bear
2023
Producer
Inspired by a true story, an oddball group of cops, criminals, tourists and teens converge in a Georgia forest where a 500-pound black bear goes on a ...
Love and Monsters
2020
Screenplay, Story
Seven years since the Monsterpocalypse began, Joel Dawson has been living underground in order to survive. But after reconnecting over radio with his ...
Spontaneous
2020
Producer, Adaptation, Screenplay
When students in their high school begin inexplicably exploding (literally), seniors Mara and Dylan struggle to survive in a world where each moment m...
The Babysitter: Killer Queen
2020
Executive Producer, Characters
Two years after defeating a satanic cult led by his babysitter Bee, Cole's trying to forget his past and focus on surviving high school. But when old ...
Underwater
2020
Screenplay, Story
After an earthquake destroys their underwater station, six researchers must navigate two miles along the dangerous, unknown depths of the ocean floor ...
Good Luck in the Land of Mañana
2018
Executive Producer
Two sisters race their crazy uncle out to Jaroso, Colorado to rescue their recently deceased grandmother's paintings before their uncle can sell them ...
The Babysitter
2017
Executive Producer, Screenplay
When Cole stays up past his bedtime, he discovers that his hot babysitter is part of a Satanic cult that will stop at nothing to keep him quiet.
Jane Got a Gun
2015
Screenplay
After her outlaw husband returns home shot with eight bullets and barely alive, Jane reluctantly reaches out to an ex-lover who she hasn't seen in ove...
Insurgent
2015
Screenplay
Beatrice Prior must confront her inner demons and continue her fight against a powerful alliance which threatens to tear her society apart.
Your Bridesmaid Is a Bitch
N/A
Writer
A groomsman faces off against a bridesmaid who's an ex-girlfriend.
Whalefall
N/A
Director, Writer, Producer
A scuba diver in search of his deceased father's remains gets swallowed by an 80-foot, 60-ton sperm whale and has only one hour to escape before his o...
Vivien Hasn't Been Herself Lately
N/A
Director, Writer
A young married couple struggles to survive against a supernatural entity.
Crumble
N/A
Director, Screenplay, Producer
A married couple goes on a world-traversing adventure in the hope of finding a cure to an ancient curse.
Fail-Safe
N/A
Executive Producer, Screenplay
A young boy slowly begins to discover that his beloved parents are hiding a disturbing secret about his mother’s true nature.
Quarantine
N/A
Writer
A couple and their young daughter fight to survive the breakout of the Simian Flu virus that has taken a heavy toll on the human population soon after...