 In Spring 2010, Siff's experimental art short film, "Sequential Paint", written and directed by Stephen Dackson, was a featured selection at the NewFilmmakers Series in New York City's 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.As a voice actor Siff appears in the video game series, "Grand Theft Auto" as the voice and body of Rocco Pelosi.