Brokeback Mountain, as illustrated by the Brokeback to The Future parody, has something that so many recent films have lacked. A solidly recognisable soundtrack. The Gustavo Santaolalla soundtrack is sonambulisticly wistful, to the point that you might want to slap the guitar player around the head to get a bloody move on.
So what is Santaolalla’s background? A quick search comes up with him being the house musician for Alejandro Iñárritu, director of Amorres Perros (which had notably gutsy music itself). And his soundtrack to The Motorcycle Diaries was certainly evocative to the point of obviousness. A soundtrack artist to watch then, in as much as you give him the premise (gay shepherds), and he will come up with a nicely obvious soundtrack.