Skip it. If you want to see the real deal check out the self made movie about Dick Pronneke. This is a guy who not only went into the Alaska wilderness but he survived it as well for many years.
This isn’t any Hollywierd hype and doesn’t have self-important actors. Filmed in the days when you still had to wind the cameras up. Buy it on DVD and watch it more than once. I learned a lot of things just from watching it..
http://www.dickproenneke.com/index.html