and kung-fu films to help create the look of the film. Zibach said some of the biggest influences for him are the more artful martial arts films such as Hero, House of Flying Daggers and Crouching Tiger, Hidden Dragon. Stevenson's aim for the film, which took four years to make, was to make "the best looking film DreamWorks has ever made". The hand-drawn animation sequence at the beginning of the film was made to resemble Chinese shadow puppetry. The opening, which was directed by Jennifer Yuh Nelson and produced by James Baxter, was praised by The New York Times reviewer Manohla Dargis as "striking" and "visually different from most mainstream American animations". Other reviewers have compared the opening to the evocative style of Genndy Tartakovsky's Cartoon Network series Samurai Jack. The rest of the film is modern computer animation, which uses bright, offbeat colors to evoke the natural landscape of China. The end credit sequence also features hand-drawn characters and still paintings in the background. The computer animation used throughout the film was more complex than anything DreamWorks had done before. When the head of the production handed the script to VFX Supervisor Markus Manninen, she reportedly laughed and wished him "good luck". "When we started talking," said Manninen, "the movie was still a high concept. But for everyone that looked at it, it screamed complexity. We launched off by saying, how can you make this movie tangible? How can you find smart ways to bring this world to life in a way that makes it a great movie and not feel like the complexity becomes the driver of the story, but the story and the emotion being the driver?" In preparation, the animators took a six-hour kung fu class. Producer Melissa Cobb said that originally Po was "more of a jerk," but that the character changed after they heard Jack Black. According to Black, he mostly worked "in isolation", although he and Dustin Hoffman did spend a day together, which Cobb said helped with the scene where their characters face off. Lucy Liu said that the film "was quite different because it was such a long process." Liu said that when she was presented with the project they already had artwork of her character as well as a "short computerized video version of what she would look like when she moved." Release Theatrical The film held its world premiere