I can't say this with 100% certainty, but I'm pretty sure the track is something from X-Ray Dog. X-Ray Dog's music is mostly custom work done specifically for trailers, since studios got tired of using the same three clips from The Phantom in every single trailer.The albums aren't available commercially, but you can find some of their stuff through the usual less-than-legal avenues. If you can't find that exact clip - a lot of their newer music hasn't hit the black market yet - you should find at least a half-dozen other clips with similar arrangements.
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Mr. Fnord, lover of obscure movie muzak.