Weird is hardly adequate for this thing. I tried to watch this one, but fast forwarded through most of it. Obviously not my taste to keep this dumb movie in my library, so I didn't. Truly the actors must have needed the work. Can't you imagine their giggling through this thing as they marched ...through the muddy forest to their next adventure! They followed the bouncing/rolling wooden ball to discover a new era, including a chest of old clothes and how to wear them. That was somewhat amusing, even though briefly. If you like odd, old scripts, you might like this thing. But alas! The characters head back to their life in the jungle. Get real!
We like Sam Waterston in just about any role he's chosen. His part in this one is OK, but it's almost embarrassing to see him in this kind of movie. It's just not worthy of him. This movie is from 1972 when he was only 32-years old and had a 2-year old to feed. He must have needed to pay the rent too!
I really don't like to be negative regarding a review, but if you're going to spend your money to get it, and your time to see it, you should be aware that it's really strange! (Don't want this video on my Sam Waterston library shelf. He's so excellent in his later roles. Try one of those.) Hope this helps you out.