Louis Koo was promoting for his new film "Forbidden City Cop: Smart Dog", he exposed that when he filmed kissing scenes with Da S, there was a warm feeling, but he didn't get into her. He said that they were doing the kissing scenes from night to morning, kissed so much that even the roots of his hair popped out, not a very pleasant feeling. But he praises Da S's great potential for acting and joked that she'll be very good at paying villain roles. Source: On.cc
