"One thing I want to explore is how the younger generation of performers at the Northern Kunqu Opera Theatre interpret Du from a contemporary perspective and how they understand the past," Chang says.

As the host of a private collection of centuries-old opera costumes, Feng is particularly drawn to the visual elements of opera and constantly seeks inspiration from them.

For example, he says the color combinations of opera costumes from the early 20th century have gradually formed an alternative aesthetic system in his mind. Speaking of the modern development of traditional opera, Feng calls for faithful preservation of the essence of the art form to maintain its authenticity.

"The principle of passing on should be to minimize loss as much as possible," Feng says.

Chang has been thinking about art and time for many years: "Art weaves in and out of the passage of time, yet it never fears time. A truly classic work will not be rendered obsolete by time.

"The Kunqu Opera performers and Feng, whom I have captured in the documentary, are those who endeavor to bring the beauty of the past into the contemporary era. I hope my short film will be passed on to future generations, allowing them to experience this beauty anew."

Contact the writers at fangaiqing@chinadaily.com.cn