Jack Black again voices Po the panda (center) in the 3-D animated sequel "Kung Fu Panda 2," while Jackie Chan and Angelina Jolie also return, respectively voicing Monkey (left) and Tigress (right). The film smoothly picks up the story from the 2008 original but avoids repeating old jokes. (Dreamworks via Associated Press)

Jack Black again voices Po the panda (center) in the 3-D animated sequel "Kung Fu Panda 2," while Jackie Chan and Angelina Jolie also return, respectively voicing Monkey (left) and Tigress (right). The film smoothly picks up the story from the 2008 original but avoids repeating old jokes. (Dreamworks via Associated Press)