A film critic said that truly influential films should be both good and successful. Since the release of the social melody film `` Ren Changxia '', the box office has skyrocketed, even rivalling the introduction of American blockbusters. From this we know:. ['Only films that promote social themes can be considered good films.', 'Ren Changxia was praised by many audiences, and it is a very influential good movie.', 'U. S. blockbusters have a very good market in China, and their box office revenue is impressive because they are absolutely good movies.', 'China should make more of its own good movies like Ren Changxia, not the so-called American blockbusters.']