There is no direct Sammy Gravano movie at the moment. One is expected to be made in the near future, however funding and cast nomination has yet to be made. One movie called ‘witness to the mob’ tells a story which is largely based on the life of former Gambino underboss Sammy Gravano. Several documentaries also exist on youtube, with several being of poor quality and not providing an in depth or accurate depiction of events of Gravano’s life. However several documentaries are of good quality, so definitely worth checking out if you get some spare time. The documentary from the series ‘mobsters’ is one of the best and clearly the most funds have been allocated into producing this.