With the film and the book about Chris McCandless, most people are able to really understand what was happening to this kid.  Although one has a different style and it maybe everything is more dramaticized in the movie, the readers/viewers get the big picture on Chris.  He is a man looking for himself and true life by wandering the world.
  The main difference between the movie and the book is how the back home life for Chris was portrayed.  Like the blogger that blogged the book to movie comparison blog we read, i also wander about his at home life due to the differences in the book and movie.  The book goes into the situation a little, but doesn't make it seem like it is a place impossible to return too.  But in the movie, there are fights and violence between the parents that no kid should have to endure.  So whether this is the real situation, i do not know, but that's how it was made in the movie.
  The movie shows Chris in a more personal level.  It showed Chris as a funny down-to-earth kind of guy.  But it also showed the extrodinary sides of him.  These sides include things as extremely hard-working, persistant, and very intelligent.  Many claim to have these attributes, but very few reach the level of Chris'.