This morning, Vanity Fair ran through a new study put out by GLAAD that decries the lack of LGBT characters on movie screens; in the study's telling, only 17 studio films featured such characters last year. And calling the gay folks in some of those 17 movies "characters" is pretty generous -- one is the guy who gets dangled over the edge of a building, briefly, in "The Wolf of Wall Street," and another is real-life news anchor Thomas Roberts fleetingly appearing in "Iron Man 3."Most of the characters, as Vanity Fair points out, exist only to fulfill plot points about homosexuality (either straight characters' tolerance or intolerance) and could be removed from the movie without any substantive change.