Eunuch of the Western Palace
An evil Eunuch named Wang in a bid to take over the ruling dynasty in his area strikes a bargain with foreign Japanese allies in an attempt to convince them to help him seize power.
Starring Tsung Hua, Meng Fei, Mang Fei, Don Wong Tao, Lo Lieh, Doris Lung Chun-Erh, Jen-ping Su, Lung Fei
Watch "Eunuch of the Western Palace" on Amazon released in 1979. It's a drama and action & adventure movie, and has a rating of 5.9 out of 10 from Imdb which is fairly okay for this kind of movie, and is currently only available for purchase or rent.