This is a great movie and now at the cheapest price I've seen so far...
Play.com - £6.49
Hmv.co.uk - £6.99
Thehut.com - £7.85
Set in modern-day Britain, Harry Brown follows one man's (Sir Michael Caine) journey through a chaotic world where drugs are the currency of the day and guns run the streets. A modest law-abiding citizen, Harry Brown is a retired Marine and a widower who lives alone on a depressed housing estate. His only company is his best friend Leonard (David Bradley). When Leonard is murdered by a gang of thugs, Harry feels compelled to act and is forced to dispense his own brand of justice. As he bids to clean up the run-down estate where he lives, his actions bring him into conflict with the police, led by investigating officer DCI Frampton (Emily Mortimer) and Sergeant Hickock (Charlie Creed-Miles).
In-store is where I picked this up for £5, but £4.99 online also now.