Of course any film of Wong Kar Wai he is in. (The Days of Being Wild has him only for a few minutes, but it is a very good film that tends to grow on you so give it a try anyway)


A Chinese Ghost Story III
Butterfly & Sword (I don't know why this is hated among wuxia fans, I find to be a very decent film -apart from the dreaded presence of Donnie Yen-)
Bullet In The Head
Dr.Mack
Eagle Shooting Heroes (Tony is hillarious in this)
Fighting for Love
Tokyo Raiders

You know what, it would help if you tell me which genre you prefer so I'll be able to make more specific recos.