As this is, IMO, the best use of recycled music in a trailer in a long time, I'll post this information for anyone who's curious.

The music playing at the end of the trailers is from Michael Giacchino's score to the video game "Medal of Honor". It is from the first track, but the music is similar in all it's performances.

The teaser was from Thomas Newman's Shawshank Redemption and Jerry Goldsmith's Rudy. The transition occured once footage from the film was shown.

All three are fantastic scores and I fully endorse buying them.