The book it was based on is really a great read as well - the movie kind of condensed pieces of it into a story. I forget the name of the book, however. But it shouldn't be hard to find.
I still have a bottle or two of the 1978 Chateau Montelena Cabernet Sauvignon in my cellar. Reminding me of the film reminds me I should really drink them up - the wine peaked a few years ago at a little over 35 and I do want to have them before it falls apart.