How was the scene with a large number of extras made?

Nowadays, the shooting of big scenes is basically a combination of reality and reality: when shooting on the spot, some extras are used to shoot and collect their actions first, and then the empty mirror of the scene is shot. The shooting method of empty mirror should be the same as the lens that the director wants to express; In post-production, those extras will be copied to more people to achieve the effect of overcrowding. At the same time, some "actors" will be made directly by computers, and these actors will be more likely to see that they are made by computers, because the exaggeration and disharmony of body movements are obvious.

By the way, to correct it, the Da Vinci Code 2 you mentioned should actually be called Angels and Demons.

As far as "Angels and Demons" is concerned, the Vatican Square is shooting an empty mirror now. Of course, you have to get permission to shoot it. When electing a pope, some close-ups can have many onlookers at the same time. In fact, they were filmed in the studio. When these lenses are combined with the previously shot empty lens, an empty lane will appear. Of course, the long-term public lens is made of computers.

As for the example of group performance, give three interesting examples:

1. When Kubrick filmed Spartacus, he found 8000 group performances. In the scene showing some deaths, Kubrick directly numbers each extras and adjusts their positions and postures, as shown below.

2. When Zhang Yimou filmed Hero, he really called the troops to Hengdian! ! ! ! ! These officers and men dressed in costumes crowded Hengdian Qin king Palace! ! ! This kind of lens can basically be done by computer now.

3. However, there are also directors who insist on using physical special effects to the maximum extent, that is, Interstellar director Christopher Nolan, who was released not long ago.

When filming The Rise of the Dark Knight, the scene of the scuffle between Gotham police and Bain's men at the end of the film was also real, and no computer special effects were used. This is also the conscience of today's film industry. CG is always used to build a wall of people. Other people's overseas group performances are better managed than those in China, and even as the background of the fight between Batman and Bain, they are well performed.

There is also a set of scenes in the film, Bain bombing the football field. Because this scene involves less body movements of extras, some big scenes are also "copied" with some group performances actually taken.