In professional film used a lot of specialties. List all makes no sense. Let us consider the more interesting. It is hard to imagine the current movies without computer processing. Those who love fantasy evaluate it highly. To fly into space in order to make a film is very expensive. Then come to the aid of people who engage in computer graphics. This is a very laborious work. For one second you see the 24 frames. Each of them should be processed so that the viewer does not doubt the fact that the heroes are in space or under water. It uses the most modern computers and software. Many actors are obliged to these people their image. These people are not on the screen. But many thanks for their work!