Robin was watching the movie 47 Meters Down, in which two sisters are trapped in a shark cage
and are slowly running out of air while being attacked by great white sharks.
How the shark cage crashes underwater at the beginning and hits an underwater cliff at 47 meters is actually exciting. But when the sisters are finally rescued and pulled to the top, it’s unfortunately predictable that the rope will break and they’ll end up back at the bottom. At least the film was such a success commercially that there is a sequel.
Better check out Jaws by Steven Spielberg from the 70s! There is no CGI, but the film is exciting..