To date, Brennan has only starred in the 2013 action movie Blood Shot. Brennan Elliott has yet to establish a position as a bankable star.
Brennan is a dependable supporting cast member. He has appeared in three films including: the 2013 crime film Curse of Chucky as the character Ian, the 2010 thriller movie Black Widow playing Troy and the 1999 crime release Double Jeopardy cast as Yuppie Man.
His most commercially successful project to date has been the 1999 crime film Double Jeopardy, which brought in $117,000,000 at the box office.