When trailers lead the way

The filmmakers behind Trouble on the Wedding Night (1964) take a different approach, leaning on the fame of the film's composer Zhou Lan-ping to promote the movie, instead of directly focusing on its emotionally fraught tale of broken hearts - and vows.

"Zhou was a very famous and popular composer and hence the filmmakers decided to show him conducting an orchestra. So we learn about more than just the film from the trailer. We are looking back at life in Hong Kong at that time," Chow says.