Visually authentic yet with a deliciously anachronistic script, this period western starring martial arts maestro Jackie Chan is a hugely enjoyable combination of buddy comedy and adventure. Sent to the States to rescue a kidnapped princess (Lucy Liu), Chan's Imperial Palace guard hooks up with laconic outlaw Owen Wilson, who proves to be his equal in the fish-out-of-water stakes. Whether using antlers, sheriff's badges or horseshoes to prise himself out of a tight corner, Chan is pure slapstick poetry in motion, falling off horses, getting riotously drunk and confusing slave-owning louse Roger Yuan and corrupt sheriff Xander Berkeley. This fast-moving caper gently sends-up a well-loved genre and will provide a couple of hours of unrestrained entertainment.

Chon Wang, a clumsy imperial guard trails Princess Pei Pei when she is kidnapped from the Forbidden City and transported to America. Wang follows her captors to Nevada, where he teams up with an unlikely partner, outcast outlaw Roy O'Bannon, and tries to spring the princess from her imprisonment.