41 years ago today, on June 19, 1984 (May 20, 1984 in the lunar calendar), movies will implement new grading standards for children under the age of 13. On June 19, 1984, someone said about the movie "Jones of Indiana and the Temple of Death" that its bloody 20-minute footage would make him cover the eyes of any 10-year-old child watching the movie. This person is none other than Steven Spielberg, the director of this film. He is one of the supporters of a new classification standard for children under the age of 13 to watch movies under parental guidance, which has also been approved by the Motion Picture Association. At that time, films such as "The Goblin" and "Noisy" had many violent scenes, which were made more terrifying by the use of increasingly advanced special effects. The Motion Picture Association of America felt censorship was imminent, so it automatically implemented a new classification method. According to this rule, children are not allowed to watch such movies without accompanying adults.