What happens when men in blue, sworn to protect and to serve, fly out of control? If we're lucky, we get a good movie out of it. If we're really lucky, we get a larger than life character to cheer and to fear. Are you feeling lucky, punk?

Keanu Reaves, of all people, will follow in the steel-toed shoes of some of cinema's finest as a cop who goes on an avenging rampage in David Ayer's Street Kings, which opens tomorrow. That made me reflect on my favorite out of control cinematic cops, men in blue who break free from the laws of god and man. Let us know who we missed in the comments section. But be nice, or we'll track you down and crack you over the head with a night stick.

1. Clint Eastwood, Dirty Harry

Clint is so cool as Harry Callahan that he can just glare at bad guys and they give themselves up. Dirty Harry never met a criminal he couldn't beat up, a sergeant he couldn't hate, or a partner he couldn't get killed. He can't help it: he married justice a long time ago and the blind old bat won't leave him alone until he takes out the garbage. Don't even think about getting in his way: he solved the Zodiac killings in 102 minutes! Dirty Harry paved the way for several sequels and countless gruff, lone wolf outlaw police detectives.

Two reasons I'm writing this story: 1) I love screenwriter success stories, and 2) I love New York City screenwriting success stories. (No, I'm not very interested in seeing a sequel to New Jack City ... unless, of course, Chris Rock loses fifty pounds and plays another crack addict.) Over at Yahoo, they have a great story about a NYC tollbooth worker who wrote a crime script last year called Brooklyn's Finest. See, his car was totaled in an accident and so he entered this screenwriting competition with hopes the cash prize would help pay for a new ride. While Michael Martin had studied film in college, he had never written a full screenplay before -- and though his script placed second, it attracted attention from all over the place; landing on the steps of a Warner Bros-based producer who was searching for someone gritty enough to write the sequel to New Jack City.

Dude eventually moved to Los Angeles, wrote for the Showtime series Sleeper Cell, but then got homesick and returned to New York -- where, to this day, he works for the Transit Authority (he was just promoted to construction flagger). In between flagging, he still works on the New Jack City 2 script (which will probably go direct to DVD) on break in the subway tunnels, all while Brooklyn's Finest gears up to go into production this May -- in Brookyln -- with Don Cheadle, Ethan Hawke, Richard Gere and Ellen Barkin starring. Training Day's Antoine Fuqua will direct.

Oh, and he has a new car now.

Great story; you can read the entire thing here. And good luck to you Mr. Martin!