Like a lot of people I was impressed with the previous "walking with" achievements. This one mostly uses real people and has a whole different feel to it. The acting is superb and you'll forget you're watching people in makeup and hairy suits. That said, there seems to be a constant problem with productions that portray early human ancestors. I guess there's a tendency to think ancient means crude and sloppy, and that's the way these beings are shown. Think brutish as in "Quest for Fire". Somehow I think smashing an egg in your hand and getting only a bit of it, stumbling around and wasting energy or wearing furs in the cold that look like they''ll fall off in a slight breeze isn't the way these guys survived to become you and me. Probably it's meant to show how different thay were from us, but I hope future attempts might use a little more imagination. Worth a look though.