I've got to dredge up this slightly aged thread. I'm listening to a couple of great CD's right now....
Anyone see 'Scent of a Woman'? At least, recently enough to remember the tango scene? That tango piece is called 'Por Una Cabeza' ('for a head', literally. I've heard that that's pretty risque and while I don't know Spanish colloquialisms that well, I can sure guess what it might mean!

- well it is a tango piece, after all

)
In the movie, it was played by The Tango Project, a group I've recently discovered, and wow. WOW. 2 violins, accordion, and bass. Their CD's are GOOOOD.
Now, if I've got my facts right, the version of this famous piece was arranged by John Williams - who has another CD: Cinema Serenade, which sounds like a hokey title, but is a collection of John Williams and Ennio Morricone movie themes as arranged for solo violin (Itzhak Perlman) and orchestra - conducted by the man himself. This also features a Williams arrangement of Por Una Cabeza, but with a few more instruments.
That Cinema Serenade CD will make you cry, if you're like that. Not exaggerating in the least.