Here's an idea...
1) Find a copy of the TR2N trailer on Youtube.
2) Goto http://mediaconverter.org
3) Paste the URL from the URL box in the video description into the video link box
4) Choose format as MP3 (if that's what your phone uses)
5) Then download to your phone
By doing this, you have the entire TR2N trailer audio on your phone in MP3 form, which I assume you could use as a ringtone.