Recently I watched 'The Bridge on the River Kwai'. I had seen it once a long time ago but I was too young to remember it. It's a movie based on a novel which takes place somewhere in eastern south Asia --in Thailand or Malaysia I think-- during the second world war. These lands were part of the Japanese Empire. I don't know exactly when but the USA were already at war.
At the beginning there is a american prisonner and some mates of his who are burying corspes. Then, a recently made prisonner british regiment arrives and we can hear british soldiers whistling. This sound is pretty awesome and famous. The main japanese character --Coloner Saito-- imporms his new 'guests' that they're going to work on a bridge, located on the river Kwai to permit a way from Singapore to another big city and which goes through every important cities around.
Now I'm going to reveal the next of the story so if you plan to watch the movie, don't read farther more.
Whereas Colonel Saito wants british officiers to work, british Colonel Nicholson --main british character-- refuses and tells him that it's forbidden by the Geneva Convention. Of course Saito doesn't care about that convention and because of repeated refusing, he ordors his soldiers to send offciers in somewhat of a prison in the camp and Nicholson in 'the oven'. While he british colonel is being in 'jail', three prisonners of which the american guy try to escape. They are all thought killed but actually the american survives (Whoh, who thought?).