As Dirty Harry was in the Seventies, so Harry Brown is today: the movie warning of just how irredeemably stuffed we are

"I know what you're thinkin', punk. You're thinkin' did he fire six shots or only five? Now to tell you the truth, I've forgotten myself in all this excitement. But bein' this is a .44 Magnum, the most powerful handgun in the world, and it'll blow your head clean off, you've got to ask yourself a question. Do I feel lucky? Well, do ya, punk?!"

There's a reason why those lines from Dirty Harry are some of the most popular and oft-quoted in cinematic history: because we most of us understand...