Romeo Must Die duo Jet Li and rapper DMX here reunite with director Andrzej Bartkowiak for another hyperactive slice of cultural fusion. This unpretentious action thriller with its combination of eastern martial arts and western urban grit may not be rocket science, but it's still an enjoyable ride. Playing with the clichés of the buddy movie, this has DMX's streetwise entrepreneur forced into an uneasy alliance with Taiwanese intelligence agent Li after his young daughter is kidnapped by Li's former partner (Mark Dacascos). Though the hip-hop influences of Bartkowiak's previous work still dominate the tale's soundtrack and language, he seems to have refined his film-making style. There's a lot more wit, stereotypes are inverted and both the action sequences and special effects are imaginative yet believable. Li's English remains clumsy, but he's a gloriously entertaining fighter, and it's pleasing to see a feature where all the female protagonists give as good as they get.