This is the instrumental jam Blake plays in the movie (My favorite scene).

Bass Riff
e|------------------------------------------------------------------------|
B|------------------------------------------------------------------------|
G|------------------------------------------------------------------------|
E|------------------------------------------------------------------------|
D|----2------------------------------2------------------------------------|
A|-0-----0--0--0--0---0--0-------0------0--0--0-0--0--0-------------------|


Guitar Riff
e|------------------------------------------13--12-------------------------|
B|-------------------------------------------------------------------------|
G|-9-12-10-9--99--999-10-9-10-9--9-12-10-9---------------------------------|
D|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
E|-------------------------------------------------------------------------|
this riff can be played in different positions in the fretboard but the structure is the 
just jam to it use palm mute and distortions, and do bends once in a while.