If I were processing this video, I would do the following. In processing through Lightroom, you need to open up the shadows of the lower frame using the gradient tool from below. The lower part of the image is greatly underexposed with no details. Open the gradient tool first, and work from below up to lighten foreground. Hope this helps.
Thats exactly what i've done.. But in moderation..
Will bring my gradiated ND-filter with me next time
