Ok, now on to the movies. As I said, I have a Samsung TV. It's a UN65JS9500. I was seated roughly 10 feet away from it. Keep in mind, I only watched a few scenes of the Blu-ray and UHD copies, not the entire films.
Kingsman: The Secret Service -
The picture is sharper, no doubt about it. A noticeable difference,
but not a major upgrade though over the upconverted Blu-ray.
The Martian - Again,
sharper, but not a huge difference. You can see the increased resolution in scenes like where right after Mindy discovers Mark is alive and they're gathered around her workstation in the control room. The letters on the giant display screen in the background are sharper and better defined.
Exodus: Gods and Kings - This one was more noticeable of an upgrade. Especially those wide shots of Egypt. You can see a lot more detail. I did notice the picture was darker than the Blu-ray, but that was an issue with the M-Go digital copy as well, so I'm thinking that's just the source material.
Maze Runner: The Scorch Trials -
Another more noticeable upgrade,
at least in those outdoor scenes. Maybe it's just something about deserts and sand benefiting from the higher resolution since this and Exodus were the best-looking titles(which bodes well for Lawrence of Arabia).
So far, I have to say that in terms of sharpness and clarity, these are all improvements, but it is not the kind of difference we saw back when we went from DVD to Blu-ray. That could be in part due to some of these transfers not being genuine 4K. It should be interesting to A-B the upcoming Sony titles since those are.