After graduating with a Masters in Film from The American University in Washington D.C., Garrett O'Brien relocated to Los Angeles and shot his first award-winning feature film Gone Doggy Gone. The film was accepted into 15 film festivals, most notably San Diego Film Festival and Dances with Films. It has since received six audience choice awards and three grand jury awards. The film's review in The Hollywood Reporter stated that 'the low-budget film looks terrific thanks to O'Brien's crisp cinematography', 7/1/2015 Frank Scheck.

In his short time in Los Angeles, O'Brien has already shot five pilots, most recently, The Picture, written and directed by David Winkler of Winkler Films (Rocky, Goodfellas, Wolf of Wall Street, Creed).

O'Brien has shot many music videos and commercial campaigns including the viral Footlocker competition that saw O'Brien's spot receive over 90,000 views landing him a coveted finalist position. Further online work includes the award winning web series Lowlife starring renowned Australian actress Claire Van Der Boom (Hawaii Five-O, HBO's The Pacific) for which O'Brien was nominated for Best Cinematography at the Bilboa Webfest and Raindance Film Webfest. He also recently won an award for his cinematography work on the short sci-fi film called, 'Anamnesis' from the International Independent Film Festival.

His second feature, Deserted, stars Mischa Barton (The Sixth Sense, The O.C), Winter Ave Zioli (Hellboy, Sons of Anarchy), Jake Busey (Enemy of the State, Starship Troopers) and Lance Henrikson (The Terminator, Aliens). The film is edited by Douglass Crise (Birdman, Ocean's Eleven) with sound design by Ben Wilkins (Whiplash, Star Trek). The film premiered this year with some very generous reviews of the cinematography that you can view-here.

His latest feature film, 'Adolescence', stars Elizabeth Rohm (Joy, American Hustle) and Tommy Flannigan (Gladiator, Sons of Anarchy). The film is being edited by Douglass Crise and sound design by Ben Wilkins again. It is currently in post-production.