This is professional video editing, and very fake. Probably disguised marketing by som big a$$ comapany. That's very usual. I remember a cupple of years ago, people paid by Coca Cola were spamming Norwegian forums with links to youtube commercials promoting Coca Cola Zero, and a short casual comment, like, “Hey guys, check out this funny vid i found on Youtube”. Hidden marketing like that is illegal in Norway, by the way. I guess they were desperate because Pepsi has the bigges market share over here (people tend to prefere Pepsi Max over Coca Cola Light).
Edit: *Maybe the projector and some other technical stuff is real, but that projector must be land based, and the whole thing about them doing a secret, unofficial prank from that boat is just plain fake.