Harry Brown is a 2009 British vigilante film directed by Daniel Barber and starring Michael Caine, Emily Mortimer, Charlie Creed-Miles, David Bradley, Iain Glen, Sean Harris, Ben Drew, Jack O'Connell, Jamie Downey, and Liam Cunningham. The story follows Harry Brown (Caine), a widowed Royal Marines veteran who had served in Northern Ireland during The Troubles, living on a London housing estate that is rapidly descending into youth crime. After a violent gang murders his friend (Bradley), Harry decides to take justice into his own hands.