When it comes to picking wine for dinner, I’ve always been firmly in the “go for the second cheapest and hope for the best” camp. Yet this didn’t stop me loving Sour Grapes, (★★★★ 85 mins, cert 15) a documentary about nefarious goings-on in the fine wine industry. I suspect even teetotallers will get a kick out of it.

The film tells the story of how a young Indonesian man, Rudy Kurniawan, hoodwinked the New York wine scene by buying up châteaux-worth of expensive vino at auction and then flooding the market with ludicrously priced vintages, many of which turned out to be fake.