Yes! I donated via Kickstarter (I think MC was relying your info about it?).

I haven't read the book as I tend to like my IRL agendas secondary to plot but if you liked it, I will check it out.

Ah yes apologies MC, I hadn't spotted where you had already given a headsup about this.
I liked the novel but then my taste in fiction isn't very wide. I think I have the opposite approach, I think I read from concept first down into the layer of literature, like I often find actually I am listening to music concept first via lyrics then down into the actual tunes, and the music has to be positively bad before that factor overcomes my enjoyment of the conceptual content. I find I want much more fiction etc from inside my IRL agendas and struggle to find much I can stomach because, "this is helping develop a sustainable/sane future how??" "Why so few sane Black protagonists?" etc.So I personally might not be a good person for recommendations as I am up for reading even fairly poorly-written propaganda-masquerading-as-fiction, if the ideas are good.
That said, I remember Fifth Sacred Thing being an actual good novel which properly drew me in and took me along with it, though it's few years since I read it. I love to imagine a place where governance operates partly through magical/dramatic embodiment of nonhuman influences in the manner of Council of All Beings etc. And she's not "othering" this ability to find a way of living sanely - it is "us humans" doing it, pretty much. Most of her characters are bisexual & poly, if i remember rightly, in case knowing that is a factor with folks! I think the film on the Kickstarter site gives a good idea of the flavour of the book. Let us know what you think when you get hold of a copy? I am hoping to re-read it soon, might get it out when I am next at Woodbrooke's (Quaker study centre) library.
Other books of this ilk I would love to see made into film include Joan Slonczewski's "A door into ocean", you ever come across that one? Slonczewski's nonviolent warrior protagonists are an all-female race of purple marine humanoids, but successfully adopt a young man from a different (kindof-normal-human) culture. (Hey, the avatar folks already have all the it needed for making this one, just tweak the colour spectrum & the humanoid add-ons...)
One of the lovely things about Slonczewski's vision is that her protagonists are eco-technological - they do genetic engineering etc but by working in ecological laboratories with ecological awareness and take the risks of that on themselves (in contrast with the majority of higher-organism GM science happening on our planet today!). Slonczewski is a biologist and I love to find visions with a science (and critical-thinking-) positive approach. Starhawk's not against science at all, and I love the way her healing sciences operate in the novel as a fluid combination of medical science and woo-woo, but I suppose because I am a scientist I even-more appreciate the details Slonczewski can add to her world from the view of another scientist with ecological awareness.

I am interested to see how this turns out. I'm a bit skeptical of how well the film will function in the way Star seems to want it to—as a work of magic itself (AN HYP3RSIJIL?!?) to inspire people to dream a future that offers (Starhawk's preferred) solutions to our present ecological dilemma. It will only take hold if enough other people are already dreaming that kind of future that it resonates. I am minded of J. Michael Greer's suggestion that the way out of our present dilemma is not one way but many, and that dissensus is a powerful tool because none of us will have the one right answer. I think that similarly there are a lot of dreams of positive futures and maybe through disseminating enough different ones, we'll start to move toward something none of us could have dreamed alone. Hopefully it'll be a good place.

I enjoyed Fifth Sacred Thing, but don't remember much of it. I keep getting it confused with Always Coming Home by Ursula K. LeGuin, which I liked much better at the time.