Netflix just fired its movie boss for the exact thing he told the New York Times four months ago. Back in June, Dan Lin said directors who still want their movies in theaters are filmmakers Netflix has "accepted we just won't work with." Over the weekend Netflix let him go, and Variety's sources say the problem was he never figured out theaters. The timing on this is kind of unbelievable. The first time Netflix ever finished #1 at the US box office was last August, with sing-along screenings…