When I learned the book was being made into a film, I was excited and hopeful the movie would successfully capture the stunning scenery and communicate the isolation. I needn't have worried. I thoroughly enjoyed the film - and the cinematography in particular - and recognised a few well-known Aussie actors amongst the cast members. It's a slow and atmospheric movie exploring love and grief, so those looking for action and adventure will need to look elsewhere.
In this case I maintain the book was better, but the movie was a solid and true translation of the novel and was entertaining on the big screen. You don't need to have read the book to enjoy the movie.