I admit, I was intrigued by this film simply because it is about the Grand Canyon, and I am so intensely interested in it for all that it is. Thus, going into this film, I was simply excited to see the Grand Canyon in visual detail. I came out a happy camper -- excuse the pun -- and don't regret seeing this film.
The film is, by means of its own title, a message about preserving the canyon's waters and a viewer would have to be a fool to think that this is a nature film about the details of the canyon's history, geology, botany, etc. Never in my right mind would I think it to be about any of that, simply because of the title and -- of course -- reading what the movie is about ahead of time. (Duh!)
That being said, I feel there were many positives about the film that I enjoyed. The cinematography was incredible, and the effects were top-notch. I often felt like I was right there in the canyon, itself; particularly during the river rafting sequences. I often waited for water to sprinkle out onto me (though this is no Disney park attraction!) Also, the soundtrack was excellent and very fitting for the amazing scenery.
Sure, there were many elements that I'd have to disagree with. I wouldn't have had so many narrators speak to the audience, and I would have presented more opposing views that counter-argue or give praise to what IS being done to preserve the canyon -- instead of making us all seem like evil-doers who have this centralized plot to overthrow the country's Indian tribes. Yes, I would have to say that a more positive focus should have been placed in the film -- but hey, it's not my thesis.
Thus, I liked the film for what it was and not for what it was SUPPOSED to allegedly promise us the minute we purchased our tickets. I appreciate the breathtaking views that this film provided, in just 45 minutes, that not all people may get to experience in their entire lifetimes. For that, I am thankful.