Yes, Coppola is Francis Ford Coppola of movie fame. You can't escape that here at the winery -- it includes a museum of movie props, including of course those from the Godfather movies.
The tasting room (more like an estate) has a touch of theme park about it. Wine World, perhaps. They charge $6-10 to taste, depending on what wines you are sampling, but the pours are generous, considering the purpose is supposed to be to decide what you'd like to buy, and you and a companion can always share one glass. And you get to keep the glass. My favorite was the Black Diamond Claret, which had a lot of fruit without being heavily oaked. It's about $15 at the winery (cheaper at Trader Joe's and Costco).
There is a huge gift shop with all kinds of wine-related paraphernalia and books. The grounds are stunning in a very Hollywood way -- I believe his daughter, actress Sofia Coppola, got married on the grounds. There is a picnic area with a good view of the valley.