Hey guys, I’m trying to find out the title of this old Chinese movie I saw on TV in the early 2000s.
All I could remember about the film are basically these two guys being chased all over the place by Jiang Shis. At some point they figured out that the Jiang Shis would freeze on the spot if they whistled to the tune of london bridge is falling down, but as soon as the tune ends they’d chase them again and they’ll have to start whistling again.

I’m no expert on Chinese history so I’ll just say the setting was around 18th century China or something like that and the film was predominantly set at night.