Diane got her first cinematic break when she was asked to appear as a robot in Adventures of Pluto Nash (2002). However, she was unable to do the role, due to a problem with the contact lenses. Thinking that she missed her chance, Diane was called up a few days later to be cast as a dancer in the film. Since then, Diane has appeared in several television commercials, shows and films, and still continues to be a professional model and jazz musician.