Clint Mansell scored the music for the film 'Requiem for a Dream'. Peter Jackson loved the music so much that he asked Mansell to score a slightly punchier version of the title theme so that he could use it for an epic LOTR TTT trailer. The new piece is commonly referred to as 'Requiem for a Tower'.
Actually, does anybody know if this piece is commercially available? I have the MP3 like most others... but surely it would be on CD somewhere?