Witness to the Mob is a made for TV film which premiered on May 10, 1998. Film follows the rise of Sammy Gravano in ranks of NY Cosa Nostra, his turning to government witness in legal trials of John Gotti and his life in Witness protection program. The film is based on the book about Gravano titled Underboss written by Peter Maas. Main source of information was Gravano himself.
| Release date: | 1998 |
| Directed by: | Thaddeus O'Sullivan |
| Producer: | Robert De Niro |