Helios is a 2015 Hong Kong-Chinese crime thriller film directed by Longman Leung and Sunny Luk and starring an international ensemble cast from Hong Kong, China, Taiwan and South Korea. The film was released on 30 April 2015 in China and 1 May 2015 in Hong Kong.

Chang Chen is a Taiwanese actor. He was born in Taipei, Taiwan. His father Chang Kuo-chu and his brother Hans Chang are also actors.