Very disappointing: As a Brit, I found this to be a fairly boring formulaic gangster story. The brittle story starts off as fairly ho-hum and quickly degenerated into a what struck me as being an inexperienced writer's mid-script malaise, and, quite frankly, closes with a finale that sadly occurs as being a hastily-contrived stopgap afterthought.
Just don't expect or compare to masterpieces like "Lock, Stock and Two Smoking Barrels".