Oh, please. "Brokeback didn't win because Academy voters refused to see it due to their bigotry and preconceived notions!" Yea, so how did it win soundtrack and director? Care to explain? Seriously...listen to yourself
"It opened eyes and changed minds." OK so where do you get your data? Everything I have heard is that it has been very moving for the gay community (what a shock there) and has left the heterosexual community generally either a) apathetic, or b) not a fan. From non-gay individuals I have heard the following two comments by far the most:
1) None of the characters were overly sympathetic; I just couldn't relate to it. I guess it was OK.
2) I didn't really like it because he basically had an affair and lied to his wife. I don't support that kind of behavior gay or straight. Did you see how hurt she was as a result? Not cool.
I have not heard of a single person having some progressive-thought epiphany as a result of seeing the movie. If you have an article or anything, though, I'd be happy to read it.
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I don't know what you mean by "Crash" being done before; most race movies have traditionally been made right after some large national issue like the LA Riots or depicting the 1950s-60s Civil Rights Movement. "Crash" was done to show that although many people think racism is a problem of the past, it is still among us and in ways many of us overlook and don't realize. When has that been done before? So many people consider themselves to be not racist, yet they really are and are blind to it. See http://blackpeopleloveus.com for an extreme satirical example of this.
I just guess I don't understand the logic behind thinking Brokeback winning best picture would provide so much validation, and then when it doesn't win, suddenly there is some huge conspiracy against the gay community (in Hollywood of all places!).