A lot of people were voicing their opinions about the music in the "Clash of the Titans" trailer. Some liked it, others would have liked a more classical feel. I have come to the realization that the music in the trailer is not, in fact, originally for the trailer. For those of you who have not realized this, it is a song called "The Bird and the Worm" by The Used.
What this means for the music in the movie is uncertain. What is certain, though, is that it PROBABLY will have a rock feel to the music, as Matthew Bellamy of the band Muse is working on the soundtrack.