An elderly ex-serviceman and widower looks to avenge his best friend's murder by doling out his own form of justice.
- Year: 2009
- Country: United Kingdom
- Genre: Thriller, Crime, Drama, Action
- Studio: Marv, HanWay Films, UK Film Council
- Keyword: investigation, self-defense, riot, murder, vigilante, drug dealing, hospital, widower, loner, subway tunnel, army veteran, vigilante justice
- Director: Daniel Barber
- Cast: Michael Caine, Emily Mortimer, Iain Glen, Lee Oakes, Liam Cunningham, Sean Harris