In 2012, Mullen became the first woman to direct a live action, fully stereoscopic 3D feature film, Dead Before Dawn (2012).
[2] In 2016, Mullen directed Below Her Mouth in 2016, which was an official selection at the 2016 Toronto International Film Festival.
[3][4][5][6][7] She was one of several honorees of the Birks Diamond Tribute celebrating Canadian women in film during the 2016 festival.
[16] She grew up in Niagara Falls, Ontario, and now lives in Los Angeles.
[17] Mullen was added to the Niagara Falls Arts and Culture Wall of Fame in 2016.