Hi Brom, Welcome to BushcraftUK.
The film looks interesting, a strange concept, getting rid of all of the baggage of modern life and just living off the land. I have only seen the trailer for the film, I have not read the book - however the guy seemed to take unnecessary risks, with that sort of attitude you will end up injured or dead sooner or later, the trade off seems to be that you have a good time along the way.
I cannot see how anyone could be so selfish, presumeably his parents were worrying about him. Most of us have people who care about us and rely on us to some extent so going walkabout is simply not an option.
I will watch the film when I can, I hope Hollywood has not put their spin on the story too much.
Rant over, soap box put away.
Stewey.