Just seen Sour Grapes which is on limited release here in UK, also Canada Australia and New Zealand..
It's the Rudy Kurniawan story, which we've probably all heard of. I thought I knew it but there's a lot I didn't.
The film doesn't go into every detail I'm sure but tells a fast narrative, starting with the rich wine collectors in the USA who bought rare old wines at auction and met to open and taste them.
Enter a gregarious young man with seemingly bottomless wallet who was bidding $1M every month. Welcomed into their group he generously poured rare old wines, and was soon also sourcing and selling at auction. Many of the purchasers of wines he'd sourced were those acquaintences.
The film follows Laurent Ponsot of Clos de la Roche who spotted a wine of his from a non-existing vintage on sale, and other doubters who noted inconsistencies in Rudy's wines. (e.g. a vintage that predated the appellation on the label)
But why did Rudy really do it? He was supposed to be from a rich family, how did he get the millions to start with?
The film comes up with a dark underlying motive that I'd not previously heard of.
I very much enjoyed Sour Grapes, it's a documentary which mixes contemporary interviews with those involved, mixed with archive footage, and throughout is the engaging ‘Rudy’ himself, laughing and joking, and at one point is captured saying ‘and I refill it and put the cork back’.
At the time they thought he was joking.
Trailer on youtube - https://youtu.be/BNKo7oHK-_Y