When it comes to the instructive moive, most people may think of a documentary film or a boring feature moive; no one doubts the instructive moive can teach us a lot, but there isn't enough wonderful and atractive episodes in the film, people will feel it dull, however if we put some humor elements into the moive, things can change, whcih can interest the moivegoers gradually, and such moive also can hit a better box-office;Charlie Chaplin, one most famous moive star in the history, he is most recognized as an icon of the silent film era, Chaplin perfected an individual style of performing, derived from the circus clown and the mime, combining acrobatic elegance, expressive gesture, facial eloquence, and impeccable timing, he payed the sympathy to the poor people and criticised the greedy wealthy men by the humorous way, people enjoyed the funny things of his films,while learning some lessons from them; most people may know the classical moive "Roman Holiday ", and we also know the leading actress Audry Hepburn and her never-forgetten innocent figure, actually this moive is a love story about a princess, but I think another reason to make the film successful is some humorous episodes involved except for Hepburn's brilliant performing, audiences can appreciate the true love between pricess and her Mr. Right during a lot of hilarious performing.

but in recent years, instructive films become fewer and fewer, I think the rootcause is the commercialization of moive industry, it's beyond doubt that commercialization saved the whole film industry many years ago, and it boosts the development of film industry, earning money is the main purpose of filmmaker, but they are purchasing the high box-office income crazily, but neglect their another important duty: instruction, we can see that a lot of violent and erotic contents flood into the most of moives, it's a big trouble even though we have so-called ranking system to control it, so the supervision of government shouldn't be absent for the moive industry, governments should take some measures to protect the developemnt of instructive moive, moive isn't only about entertainment, also about the education of younger generrations;

according to aboved information, we can make a conclusion that the hilarious and instructive moive also can make successful in the film industry, at the same time, governments should play an important role to boost the prosperity of instructive films;