Watergate Bridge doesn't use 3D glasses. When watching the Spring Festival movie Watergate Bridge, you don't need to wear special 3D glasses, because this is 2D, not 3D. Some screening halls have so-called 4D pictures, not 3D pictures, but the seats can shake with guns in wartime, the air jets under the seats simulate the shooting effect, or some small bubbles float in the air to simulate flying snow and so on.

The Development History of 3d Films

1839, Sir Charles Wheston, a British scientist, invented a kind of stereoscopic glasses according to the phenomenon that people's two eyes have different images, so that people's left eye and right eye can have different effects when watching the same image. This is the principle of 3D glasses today.

1922, The Power of Love, the world's first 3D movie. Unfortunately, the film has long been lost. Early 3D movies mainly showed three-dimensional effects, and gimmicks were often aimed at the audience and threw objects at them.

In 1936, a film with stereoscopic effect can be produced by using a dual-lens camera and a polarizer, but this technology has many limitations. After the development of RealD 3D technology and the popularity of Avatar, stereoscopic movies have been further widely promoted. An Australian director claimed that he had successfully made two 3d films during Nazi Germany in 1936.

1952, Boisne Demon, which tells the story of African adventure, was recognized as the first real 3D feature film in history. The slogan of this movie is that the lion is on your leg and the lover is in your arms. Although Life magazine called the film cheap and absurd at that time, the audience still enthusiastically crowded into the cinema to experience the natural perspective of the film.