Copyright evaluation and risk management for lenders, as well as intellectual property right breaches have also become major obstacles for the growth of China's filmmaking industry, and investors, under certain circumstances, may see filmmaking as a risky area, according to Zhang.

Michael Ellis, president and managing director of the Motion Picture Association, Asia Pacific, said establishing market conditions which make it attractive for sustainable theatrical and non-theatrical returns will benefit China's filmmaking industry.

While around three-quarters of film revenue in the US comes from non-theatrical channels such as theme parks, hotels and comic products, in China only about 10 percent of total film revenue is generated outside of theaters, which means China is yet to fully exploit that side of the industry, said Ellis.

A recent report jointly commissioned by the China Film Distributors & Exhibitors Association and the Motion Picture Association estimated that China's total income from DVD, Blue-ray, and VCD sales and rentals in 2011 reached just over 350 million yuan.

Estimates suggest Shanghai's home entertainment market potential ranges between 140 million yuan and 152 million yuan.

Jo Yan, senior vice-president of Walt Disney Studio Distribution, Greater China, emphasized that in China, it is not so much about how much is invested, but about the story.

"Money has never been the key problem for China's film industry, and most of the recent blockbusters were not necessarily big budget movies," he said.

He added that the Chinese digital market is growing and consolidating and that he expected it to be very profitable in future for local film producers.

In 2012, the total number of cinema screens in China grew to over 13,000 nationally after 3,832 were added during the year - an average of 10.5 new screens per day. About 91.5 percent of screens are 2K digital projection installations, and most are 3D capable.

Yu Dong, chairman and chief executive officer of Bona Film Group Ltd, said that in five years he expects China to have a filmmaking industry worth $10 billion.

But he added: "It is essential to make reforms to current filmmaking industry policies. Filmmakers need to improve product quality, and policy makers need to introduce a film rating system."