Listening and repeating helps a lot. Duolingo's got a short intro course which is free. There's also a more in-depth Rosetta Stone course, though it's a little pricey. And if you're in the Arizona or New Mexico area, most large public and college libraries will have even more materials to use.
I'm a beginner myself as well, wishing you the best!
You might take a look at A Dine' History of Navajoland (2019) by Klara Kelley and Harris Francis. Kelley is an Anglo-American anthropologist who has worked on the Navajo Nation since the 1970s and her collaborator, Francis, is Navajo with an extremely strong background in cultural and historical preservation. The book is quite good in that it challenges several of the major issues with Navajo historiography and sheds light on some previously little-discussed elements.
I really liked <u>Conversational Navajo</u> because it comes with a CD that helps with pronunciation. If you try and get it on Amazon, it'll cost a lot more than getting it from these guys directly for some reason.
This children's picture dictionary is also very helpful for really basic vocabulary.
I have quite a collection of Navajo books (including these) gathering dust, if you DM me perhaps we can arrange a way for me to get them to you.
It seems you might be right. The film originates from Poland. I highly doubt there will be any Dineh representation during production also.
This is a great time for someone from the Navajo community to contact them and get involved.
I've been planning to do an archaeological study of this! This tradition (and the overall importance of goat's and sheep's milk) is something that I've heard about for a while from my relatives, plus it's mentioned in things like the Frank Mitchell bio, Navajo Blessingway Singer, or Charlotte Frisbie's recent work with Rose Mitchell,Food Sovereignty the Navajo Way.
I am white, but I have lived among the Navajo since I was seven years old. I am 54 now, so that is a long time. I have never encountered a Navajo person who was opposed to someone learning about their language or culture. That said, it is not an easy road. There are resources you can purchase, in addition to the resources that are referenced here, I recommend this: https://www.amazon.com/Dine-Bizaad-Speak-Write-Navajo/dp/0964418916. I do no recommend the Young and Morgan dictionaries, they are so big and thorough that they are not all that helpful to someone learning for the first time.