Visible crew/equipment: A crew member seen standing on the far left of the frame when Llewelyn is being chased down the river. (00:19:34)
Visible crew/equipment: When Moss is talking with the security guard at the border bridge, you can see the camera and the cameraman next to Moss in the reflection of his sunglasses. (01:27:40)
Answer: "Blood Trail (end titles)" By Carter Burwell, the Coen's frequent composer. The Film does not have a soundtrack, but you can listen to it in Carter Burwell's website: http://www.carterburwell.com/projects/NCFOM.html.