I watch it for the scene in which Nino is supposed to arrive at the Two Windmills at 4 o'clock, and at 4:08 Amelie is still waiting and watching the clock tick its desperate hands.
Nino is late. Amelie can only see two explanations. One, he didn't get the photo. Two, before he could assemble it, a gang of bank robbers took him hostage. The cops gave chase. They got away, but he caused a crash. When he came to, he'd lost his memory. An ex-con picked him up, mistook him for a fugitive, and shipped him to Istanbul. There he met some Afghan raiders who took him to steal some Russian warheads. But their truck hit a mine in Tajikistan. He survived, took to the hills, and became a Mujaheddin. Amelie refuses to get upset for a guy who'll eat borscht all his life in a hat like a tea cozy.
It's comforting to think he never called because something horrible and wildly unlikely happened, and not just because he met someone else, or god forbid, just plain decided he wasn't interested afterall.