Nóz w wodzie 'Knife in the Water' (1962: Roman Polanski)
Pretty good for a debut film. Three actors: A husband, a wife, a young hitchhiker, and a boating trip.
Besides the obvious play on tension and relaxation, plus the subtle one-up-manship contests between the youth and the husband, some of the shots were absolutely fantastic in composition.
</Moose's requisite completely uninformed rant on art-house cinema for the next month or two>