Elmer's Scalp Messgae by Videohelper Music Library
The music in the current BBC Great Expectations trailer is an instrumental piece called "Outro" by M83.
It is custom writen music by a dude called Michael Giacchino
Its called Days Are Forgotten by Kasabian
Clint Mansell - Requiem for a Dream
Its by Eminem the song is called Till' I Collapse.
The song is called Perfect In Between by Champion.
I just found it, was looking for it too! It's called Map of the Prolematique by Muse.
One of the trailers (Ubidays '07) had "Lonely Soul" by UNKLE in it The Cello trailer uses a song written specifically by Jesper Kyd who also did some other music for the game.
Well the trailer is the n00b and the veteran (Jonah Hill and Dwight Howard) theres only bckround music
Heart of Courage by Invincible
the music for the 2nd or 3rd trailer is down the rabbit hole. by Murray gold.