I've seen a lot of tabs out there for this song, but they're all wrong. HERE'S the right way.

BTW, this is the version played on the soundtrack, and at the end of the movie.

Basically the chorus is three chords.

E-0----2----0---
B-0----2----2---
G-1----3----2---
D-2----4----2---
A-2----4----0---
E-0----2----0---

Then the verses, in which the guitar plays after they speak, goes.....

E--------------
B--------------
G----9-7-4-----
D-2--9-7-4----- 2 TIMES
A-2--7-5-2-----
E-0------------

and thats about it.