Desc: Tang lang: Directed by Chia-Liang Liu. With David Da-Wei Chiang, Cecilia Wong, Lily Li, Chia-Yung Liu. Shaolin Mantis (Orig. Tang lang) is a 1978 Shaw Brothers film directed by Lau Kar-leung. Starring David Chiang and Liu Chia Hui. Shaolin Mantis tells the story of a man who learns martial arts by observing a praying mantis.