Sometimes I wonder what happened to Chris Tucker. Then I realize that he was just a prototype that got mothballed when the smaller, more powerful Kevin Hart was released. Tucker’s career is pretty much defined by “Rush Hour” (1998), a standard, 1990s buddy-cop action flick. He’s in full Hollywood Shuffle mode playing a motormouthed Eddie Murphy for a cheap rip-off of “Beverly Hills Cop.” There are typical international crime hijinks and even a heavyset nemesis detective with a handlebar mustache. Fortunately, layered on top of that mediocrity is Jackie Chan’s incredibly choreographed fight scenes. It’s worth seeing just for those.