MY FATHER IS A HERO starring Jet Li. This is also known as The Enforcer. Actually, when it first came out, it was called, "My Father The Hero".
This was an under-rated film. Really good action in this! It also has Tse Miu, the kid from New Legend of Shaolin. He does awesome in this film. Anita Mui also is pretty badass in here.
SYNOPSIS:
Johnny (Xie Miao) is a junior kung fu champ growing up in China. He's been told his father, Wei (Jet Li), is a dangerous criminal. He's really an undercover agent infiltrating the Hong Kong Triad. When a brazen cop, Inspector Fong (Anita Mui), sets out to bring down the gang, she investigates Wei's mainland past and uncovers his true identity. After Wei's gravely ill wife dies, Fong takes Johnny back to Hong Kong with her, and father, son and cop team up to bring down a criminal empire.
Here's the trailer. This one is worth watching. You don't hear much about it, but it's got some solid action/great martial arts choreography in here: