Brett Mullen was born in 1985 in Hornell, New York, to Laura Mullen (Coleman), a horse show manager and event planner, and John Mullen, a floor covering specialist. Brett spent his younger years in Hammondsport, New York and later in Orlando, Florida, where he obtained a degree in Computer Science at Full Sail University and education at The New York Film Academy. In 2008 Mullen relocated to North Carolina to pursue his career. Brett began his career as a cinematographer, carrying out duties as director of photography on Christine Parker's Dead of the Night (2009) and Matthew B. Moore's Keep it in Hell (2010) in which both films received awards for 'Best Cinematography'. Mullen later collaborated with Moore as producer and director of photography on a western horror feature titled Hatchet County (2012).
