I did not find any satisfactory answer to the question the book raises, namely the existence of a Divine god of Mercy and Love and also the existence of unspeakable evil and human suffering beyond imagination.
I am a huge Dylan fan, but this film is very pretentious. Artsy fartsy, having several people play Dylan, and it occasionally portrays things about him, but ultimately, "Nothing is revealed." The soundtrack is pretty good, though, the library has that, check it out and give it a listen. For a Dylan movie, check out the much maligned Masked and Anonymous. It's brilliant.
What's bad about this movie? The performances, the plotting, the dialogue, the characterizations,...the music is occasionally interesting, but not until the final half hour. There is a very clumsy nod to civil rights, including a ludicrous, heavy-handed use of Dr. Martin Luther King, Jr. The ending is excruciating Hollywood happy ending, unbelievable and ridiculous. The final musical performance, however, is colossal. Before that, the music, like everything else, is mediocre.
Also, this is based on a true story, but it's light years away from the truth of the story.
This is rockabilly, but get the real stuff, not this. Gene Vincent, Carl Perkins, Elvis on Sun Records, Johnny Cash, Jerry Lee Lewis, even Rick Nelson's first records, Johnny Burnette & the Rock and Roll Trio, Eddie Cochran are all great rockabilly. (Have I forgotten anyone?) This stuff, though, is lame.
I haven't read the book, but “War doesn't negate decency. It demands it, even more than in times of peace" (Khaled Hosseini, The Kite Runner) is wrong. War is a sometimes necessary evil, but it is always inherently "indecent," to say the least. A decent war is only one not fought.