Whoever can answer this will gain my love forever.
"The Blood of Cu Chulainn" by Mychael Danna. (See Link to hear it)
http://www.youtube.com/watch?v=1TezgCpPuys
This song is used in the opening of the film Boondock Saints. But I have heard it somewhere else...and I cannot place it. What films have used this, film, TV, or video games. I know I have heard it in something else. I was so sure it was Braveheart, but I own the soundtrack to that and it was not on it.