"I think he can relax me a little, because of the way he is and maybe I can give him some energy in the way I am. I don't know, it somehow just works."

After Tony Leung took part in a press conference to discuss the film's lush visuals, its demanding shoot, and the process of working together, without a script.

Find other Festival press conferences on the TIFF Originals YouTube channel as part of our TIFF Rewind series in celebration of TIFF's 50th edition.