Boring & flat
For the record, I have read Bill Bryson's books and enjoy them. However, this movie does nothing to encourage those who haven't.
It might as well be called 'Sleep Walking in the Woods'. I cannot recall any humorous moments, but I can recall the flat sound & facial non-expressions of Robert Redford. Why was an actor close to 80 chosen to play a man 15 years younger? I will give credit to Nick Nolte who showed vitality, probably not easy to do when playing opposite such a wooden-like character.
No story development, no meanings hidden or otherwise, nothing but a waste of time.