Yesterday was the final showing of Beautiful Boy at a local arthouse movie theater here. I HAD to catch the movie. I couldn’t let it end its brief run here without making an effort. I had read Beautiful Boy (by David Sheff) and some of Tweak (by Nick Sheff) to prepare myself to watch the movie. (P.S. I also cared about the message of the film, of course.) Does that sound odd? Maybe it does –sound somewhat odd. It’s that chicken or egg argument. Do you watch a movie first to enjoy…