This dispiriting rehash of RUSH HOUR, an unexpectedly successful buddy-cop comedy that traded on the contrast between Tucker's brash hipster stylings and Chan's buttoned-down fish-out-of-water routine, should please undiscriminating fans. But it in no way improves on the clichéd formula. Loudmouthed LAPD detective James Carter (Chris Tucker) is spending his vacation in Hong Kong, lured by Detective Inspector Lee's (Jackie Chan) promise of a rollicking good time. Instead, he gets sucked into Lee's investigation of a bombing that killed two American customs agents. Lee suspects polished gangster Ricky Tan (John Lone), who was the partner of Lee's late father, a career ...