SPOILER ALERT -- I'm going to disclose a major plot twist in a movie now in theatres, so if you plan to see AUGUST: OSAGE COUNTY, with Meryl Streep, and you want the various twists and turns to come as so many surprises to you DON'T READ ANY FURTHER!!! Indeed, if you want to read further you'll have to scroll down a bit, past the movie poster. The film was quite dark, with flashes of humor and a lot of great acting. But what struck me was the theme of incest. Two of the characters are portrayed as deeply in love with one another, as exhibiting the sort of sweet young romantic feelings that we always applaud at movies -- that many people go to movies to celebrate. There is only one couple in the film who could be described that way. We understand through most of the film that they are first cousins. In fact, we understand that so early in the film that this isn't even the plot twist I was warning about. It is something of a given. Ivy and "Little Charles...