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ThorinOakenshield has the list of music for the Hobbit movie, and it suggests the movie will end shortly after they escape from the wargs and orcs after leaving the tunnels.
the last few tracks:

1. Brass Buttons

this is Bilbo squeezing through the door losing his buttons.

1. Out of the Frying-Pan

this is when they run from the orcs chasing them and climb a tree, only to have the orcs start a fire to burn them out...

1. A Good Omen

presumably this is after their rescue from the burning tree (by eagles?)

1. Song of the Lonely Mountain performed by Neil Finn
2. Dreaming of Bag End

No music about them visiting Beorn...