Loved the opening shot at Dettifoss, Iceland… but the rest of the movie was one giant “huh”?

This is the rare case where I didn’t really like the movie, but would still like to see a sequel, just so they can make some sense of the whole thing. Maybe this is a “sunk cost fallacy”, but I’ve already invested about 2 hours into this thing… Maybe after 4, it’d be worth it?