How does CGI work in movies?

Related questions

1. Has the Hulk ever picked up Thor's hammer?
2. Who invented CGI?
3. How long does it take to render a CGI movie?
4. How long does a Pixar movie take to render?
5. Was Toy Story the first CGI movie?
6. Was the first Jurassic Park CGI?
7. How much does CGI cost?
8. What software is used for CGI?
9. HOW MUCH DOES got cast make?
10. Why is VFX screen green?

Tags

1. #generated
2. #create
3. #special
4. #dimensional
5. #effects
6. #simple
7. #movies
8. #works
9. #images
10. #action
11. #three
12. #explanation
13. #computer
14. #programs
15. #graphics
16. #stands
17. #animated
18. #which
19. #imagery
20. #television