I really love the movie. We (still) watch it 3 or 4 times each year. No, it's not going to win Best Picture but it is a fun and entertaining movie.
I read the book on which the movie was (loosely) based. Great book for any wine lover - "Judgement of Paris", written by the guy in the movie who is the journalist. Half the book was about the contest and the history behind it; half about what has happened in the world of wines since and as a result of the contest.
The movie doesn't say much about the fact that the reds were won by Stages Leap Cellars of Napa. A couple Santa Cruz Mountain wineries were also in the contest but didn't do as well.