In ancient times the Mi’kmaq lived in a very close connection with nature. Because of this they mainly ate the things that nature provided them with: berries, small animals or even bears. They preferred to eat fish, because of being so close to water (especially in Nova Scotia). This also explains why the traditional way of transportation was the canoe, which was of course self-made. The Mi’kmaq lived together in communities which consisted mainly of the usual Wigwams. The kids were raised by the whole community and had a lot of contact with everyone in the settlement.
Nowadays the Mi’kmaq live a modern life, while they never forget their ancient roots. There are lots of organisations who try to keep their ancient culture alive (as you have seen in the movie) and who also provide materials for education.