BEIJING (Reuters) – Kung Fu superstar Jackie Chan said that while the upcoming film "Chinese Zodiac 2012" will be his last major action movie, citing his increasing age, he will still be packing punches in the world of philanthropy. Chan wrote, directed and produced his latest film, set to premiere in cinemas in China next month. He also plays the lead role and said that he regarded it the "best film for myself" in the last ten years. …