The papers fold over too. And unnaturally quickly I'd say. The way the cup tips over and back looks even less natural.

If you skip around the video, you can see the window slowly moves left the entore time.

The way things "tip" and gravity shifts make no sense with the slow acceleration of a massive boat and how slowly it would rotate.

The way the wave breaks like on a shore, even though this is on the ocean clearly.

The way containers get attached they either don't move or break loose entirely, but in the video they get pushed around a bit.

I'm pretty sure it's complete slop.