The Avengers Again
When it comes to movie stunts, there are professional stuntmen who are certified and capable of pulling off complex and dangerous moves. In addition, there is some movie magic involved as well – special effects, of course. To keep the stuntmen and actors safe, they obviously don’t jump off of real buildings or anything like that. They use harnesses and special mattresses to hold them and break their fall safely.
Avatar
Avatar just might have been the biggest CGI movie in Hollywood when it was released. Since then, there have been multiple films that were pretty much all CGI. It would be quite hard to imagine the movie without all the special effects, but, naturally, that’s how it started. The actors had to act out their scenes for the animators to base their characters on.