Young adulthood films growing in popularity

A sense of rebellion and humor are common features of the films and have also helped them draw bigger audiences.

"Young people are under a lot of pressure from society and the job market these days," said Rao. "Watching these early adulthood-focused movies helps them vent."

Rao said the popularity of the films may also help Chinese filmmakers compete with their Hollywood counterparts.

Foreign films are often at the top of China's box office charts. In 2012, ticket sales for imported movies accounted for 51.54 percent of gross ticket revenues, even though only 50 imported films were shown that year, compared to 893 domestic films.

"Tiny Times," a film that depicts the lives of female university students, is expected to maintain the momentum that "So Young" has generated. The film is scheduled to debut on June 27.