I'm not sure why they thought this would rank among the best of the Bond themes when the producers accepted it. Yes, Casino Royale is a different kind of Bond film; edgier, grittier and in some ways, even better, but this music adds nothing to the mix. It seems gray, even faceless, with none of the 'setting introduction' or character usually invoked by an opening theme. The other issue is how the artist did not want it included on the movie soundtrack, so it would have to be bought separately. Another indication that it may not belong in the Bond library?