New movies get produced because people want to make and sell movies. They don't have to make movies that are 100% reality. Movies actually use special effects and CGI to fake all kinds of things that would be illegal in real life.

For example, there was a time when to get a flood effect filmmakers flooded a set. 3 extras died. Later on they were told they can't do that, but they can simulate it. Tons of movies show people getting overcome by floods, but no one dies in real life anymore.