It made more than $250 million worldwide — did you think they’d pass up a chance for a sequel? Still, it’s taken a while; “Rush Hour” came out in 1998. In “Rush Hour 2,” Jackie Chan and Chris Rock reprise their roles as unlikely detective partners who jet from Hong Kong to Los Angeles to Las Vegas to trap one of the world’s most elusive gangsters. With lines like, “In Hong Kong, I’m Michael Jackson and you’re Toto,” “Rush Hour 2” is a chip off the old block. Director Brett Ratner, who made his mark with the original “Rush Hour,” also returns, with a supporting cast that includes Zhang Ziyi, John Lone, Alan King and Roselyn Sanchez.