What I found particularly appealing about the style was the character development. The wife of one of the brothers, for instance, is a very minor character, but you have just enough information about her to think that you don't like her very much. Not that she's villainous or anything, just kind of off-putting - exactly what a sister-in-law who you don't especially care for is like.
While the movie does open up some interesting questions about art, ownership, and legacy, I can't say that I found it especially thought-provoking. It was a pleasant way to pass an hour on a sunny Sunday, but it didn't really stick with me. Still, I'm glad I saw it.