Overheard 2 is a 2011 Hong Kong crime thriller film produced by Derek Yee, written and directed by Alan Mak and Felix Chong and starring Louis Koo, Lau Ching-wan and Daniel Wu. It is a sequel to the 2009 film Overheard where Koo, Lau and Wu play different roles with a different storyline, but the key elements of the first film are kept.Production started in February and filming lasted for three months. A press conference was held during the 2011 Shanghai International Film Festival on 10 June.