Siff’s experimental short film, Sequential Paint, written and directed by Stephen Dackson, was a featured selection at the Spring 2010 NewFilmmakers Series in New York City at the Anthology Film Archives. The film also screened at various exhibits, art shows and galleries in Los Angeles, including the opener of the 2006 Santa Ana Film Festival. His work blurs the boundaries between pop art, abstract-expressionism and street. As a voice actor, Siff appears in the video game series Grand Theft Auto as the voice and body of Rocco Pelosi.