Kung Fu Vs. Acrobatic(1990)

Friends Charles and Chi visit Mainland China and discover an ancient cave that houses what is supposed to be the makeshift tomb of the legendary martial artist Lung Gim-Fei. The friends find an old spell book and practice some magic, which unintentionally breaks open a wall and releases a dormant princess and her handmaiden. Charles and Chi take the Princess and her Handmaiden back to Hong Kong with them, unaware that they were followed by the just-awakened evil warlord, Tien Chien.