I did not realize how many movies employ visual special effects. Stuff like making a sky shot look more interesting or changing the time of day was totally unknown to me. I thought VFX was only stuff like explosions or laser beams. Furthermore, I did not realize that scripts usually do not have any visual effects written into them. This is interesting because it makes VFX production an improvisational art. VFX supervisors meet with directors to figure out how to enhance a certain project and see were more visuals are needed. I think that is fascinating because it does not give them a lot of time to generate ideas for what to do; these VFX people have to work a lot on the fly.