A former Thai soldier has been plucked from obscurity to battle Sylvester Stallone's movie hero Rambo in a new film. Retired Shan resistance officer SAI MAWNG, 40, will play the villain in Stallone's new film JOHN RAMBO, according to the DarkHorizons.com website. The new Rambo film's storyline has Stallone's vigilante character working as a snake hunter in Thailand, where he is hired to help deliver medical and religious supplies into Burma.