Originally released as a motion picture in 2017. Based on the book by Mark Felt and John O'Connor: "A G-man's life: the FBI, being 'Deep Throat', and the struggle for honor in Washington." Special features: extended & deleted scenes ; secrets of making 'Mark Felt' ; commentary with Peter Landesman. Board of Film Censors, Singapore: PG13 (Brief nudity) Music, Daniel Pemberton; editor, Tariq Anwar; director of photography, Adam Kimmel. Liam Neeson, Diane Lane, Marton Csokas, Ike Barinholtz, Tony Goldwyn, Bruce Greenwood, Michael C. Hall, Brain d'Arcy James, Josh Lucas, Eddie Marsan, Wendi McLendon-Covey, Maika Monroe, Tom Sizemore, Kate Walsh, Noah Wyle, Julian Morris. English dialogue; English or French subtitles; English subtitled for the deaf and hard of hearing (SDH); described video.