The Lost City of Z was an astoundingly ambitious film. I am not sure it actually works, but I was really taken aback by it, and I respected it very much. I don't think I've seen a movie like this since, like, the 1950s.
To be honest, though, The Lost City of Z had other problems as well. The end is unsatisfying and not well designed: if you're going to make an old-fashioned melodrama, you need to have an old-fashioned happy ending. And the movie drags in its center, as the players search for their lost city and are bogged down by an absurd character played by Angus Macfadyen with Alfred Molina levels of absurdity.
In short, I can't really recommend this movie. I was excited to see it, and I found the whole thing rather stunning, if I'm honest. But in the vein of something like Richard Linklater's Boyhood, it turns out that the ambition and the idea behind the thing are more interesting than the picture; all that work and the movie just isn't that great.