HONG KONG - To hear Hong Kong director Dante Lam tell it, filming the fight scenes in his new movie Unbeatable was like playing a computer game.
"I got more and more excited watching the playback on the screen.
When filming began, I sat there and said, 'Hit harder, hit more, change position, hit there.' But obviously, the two actors were really feeling a lot of pain doing all of this," he says.
"Working with me is really not easy. I ask for a lot."
And yet the male leads in the movie gave him all he asked for and more.
That is why Lam feels he struck gold with the casting of Nick Cheung and Eddie Peng as boxers in Unbeatable, which is showing in cinemas.
Cheung plays a boxing instructor at a gym who trains Peng for a mixed martial arts championship.
Few other actors would have been as willing to undergo such torturous physical training as these two for their roles, says the film-maker.