There are 2 motion pictures that I can recall about WW II in Burma, but I don't know if they are the ones you are looking for, I think they are based before that event. One is an Errol Flynn movie
Objective, Burma! (1945) and the other one is
Yesterday's Enemy (1959) Overview
Heres a book about the Massacre at Ramree Island (where the Japanese where based):
Amazon.com: Dragon of the Mangroves: Inspired by True Events of World War II: Yasuyuki Kasai: Books
Theres a Youtube video about it:
YouTube - Massacre at Ramree Island
And the Wikipedia article on it.. Battle of Ramree Island :
Battle of Ramree Island - Wikipedia, the free encyclopedia
Hope that helps