Have you allready shot your footage?
It was probably shot with a polarizing filter in front of the lens:
This is normally advised against, because when you pan the camera, you get dark areas that move through the sky.
You see that happening in the panos.
There’s also some additional masks to create a vignette look.
I think it will be very hard to achieve this effect without top quality footage to start with.
I also would keep the levels in check. Because if you have white areas that are over-exposed, you’ll never get them toned down in post.
You can try the method in my tutorial, but experiment with different transfer modes. I used screen, but using Multiply or Hard Light can give you a whole nother look.
if you have some footage, can you post a link of a fragment or just a still ?