Taiwanese actor Dylan Kuo Pin-chao would make a perfect spokesman for the government's Love Teeth campaign.

Kuo, in town to promote new horror movie Black Night and attend its premiere at the Hong Kong International Film Festival, said he was concerned about oral hygiene. 'When I'm filming, I brush my teeth whenever I eat,' Kuo said. 'It's torture if I don't.'

Black Night comprises three separate stories, directed by Patrick Leung Pak-kin, Thailand's Thanit Jitnukul and Japan's Takahiko Akiyama.