IMHO, the only reason Brokeback got the publicity and kudos it did was because it was about two gay guys, and they just don't make mainstream movies like that very often. If it's about a hetero couple, people would be falling asleep in their seats. It just ain't that great.
But that ain't the question Bilbo asked. You seem like an open minded guy. See the movie. It's not exactly hardcore or anything, I think you should be able to handle it, if you're a Hathaway fan you will likely store a few images in your brain that you can whack off to when you get home.

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