Artificial Scarcity is one strategy to drive prices. There's the real effect of scarcity, as from a region lock, and the psychological effect of having to decide quickly before an item is sold out. Buy now, only three left!!! Price Differentiation is also a thing: The movie is so expensive that netflix couldn't afford it for more than a few months, it's that good.
btw: "Popcorn Time-killer" is questionable use of punctuation.