Voice
I've seen the movie and it's okay, but what made me dislike it a bit was the fact that despite the fact Dan Haggerty played 'Grizzly Adams', they had him voiced over by the narrator for 99.99% of the movie! They didn't let Dan or the actor that played 'Nacoma' even use their own voices which is an utter shame!
Also there was no 'Mad Jack' and #7, nor hardly any other characters in this film, and part of the storyline didn't coincide with the TV show's eventual storyline, (the whole part with his daughter Peg growing up) but that's understandable since it was made before the series.