Not a fresh crime-police story but with one of the best mano a mano combat fight sequence between two real martial arts experts Samo and Donnie.
DVD blurb:
In this good-cop-versus-bad-gangster action thriller, Detective Chan (Simon Yam) relentlessly pursues crime boss Po (Samo Hung = 洪金寶), but eventually gives up in frustration and looks toward retirement. His replacement, Ma (Donnie Yen = 甄子丹 Iron Monkey, Blade II and Hero) is a principled, committed cop who is skilled in martial arts and has a reputation for violence. The newcomer introduces tension into the established ranks of the battle-scarred precinct. The death of a cop who was planted undercover in Po’s gang further disrupts the balance of truth and justice.

“SPL” refers to 3 stars in the Chinese astrology that symbolize the dangerous characteristics of Chan, Po and Ma. These three stars with their changes, could create or destroy the beautiful life of each other. 《殺破狼》取自中國觀星學說的三大煞星︰七殺、破軍、貪狼，用來代表三大主角的性格。「三星分別代表毀滅、鬥爭、貪婪，但他們不一定是煞星。當他們在某種情況下連成一線，可能有意想不到的好事情發生。」

Not entertaining