Directors Danny Pang Phat (L) and Oxide Pang Chun, twin brothers from south China's Hong Kong, attend the trailer release conference of their movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)

Directors Danny Pang Phat (1st L), Oxide Pang Chun (1st R), together with cast members Sean Lau Ching-wan (2nd R), Angelica Lee Sin-jie (C) and Chen Sicheng, attend the trailer release conference of movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)

Cast members Sean Lau Ching-wan (R) and Chen Sicheng attend the trailer release conference of movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)

Cast members Sean Lau Ching-wan (R) and Chen Sicheng attend the trailer release conference of movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)

Cast member Angelica Lee Sin-jie attends the trailer release conference of movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)

Cast member Sean Lau Ching-wan attends the trailer release conference of movie Inferno 3D in Beijing, capital of China, Aug. 20, 2013. (Xinhua/Jin Liangkuai)