Bang Rajan (2000)
Bang Rajan is a 2000 Thai historical drama film depicting the battles of the Siamese village of Bang Rajan against the Burmese invaders in 1767, as remembered in popular Thai culture. Cross-checking the story with the events reported by the Burmese sources indicates that the purported events at Bang Rajan are likely a merger of at least two independent events that took place in the war.
More at Wikipedia.