This is an image from The Assassin (2015):
It appears approximately 60 minutes into the film. In it, the river appears to be moving TOWARDS the waterfall in the back. In every waterfall I've ever personally been to (maybe a dozen) the water moves away from the waterfall.
This may be a dumb question, but is this a case of where the waterfall is a joining of two streams? ie, the source of the waterfall is one river moving (for example) N-S and joins a river going E-W. Is this unique? For some reason this baffled me and I had to stop the movie for a while.