Over the past 10 years, Brennan has shot feature films, documentaries, music videos, and commercials around the country. Her commercial clients include Huggies, Purina, and many more.

In 2018, she shot Sati Kaur’s short film “Blood and Glory” which was accepted into festivals nationwide, including the Tribeca Film Festival.

In 2022, Brennan signed on to shoot Steven Pierce’s feature debut Herd starring Corbin Bernsen, Timothy V. Murphy, and Ellen Adair. The film premiered at Frightfest London and is available for rent on all platforms.