Firestorm is a 2013 Hong Kong action film written and directed by Alan Yuen, produced by and starring Andy Lau. Lau plays a hard-boiled police inspector who takes the law to his own hands in order to take down a group of violent criminals who have taken multiple innocent lives while repeatedly evading justice. The film was converted to 3D during post-production, making it the first 3D Hong Kong police action film.

Firestorm was chosen to be the opening film at Screen Singapore held on 4 December 2013 where Lau and co-star Gordon Lam walked the red carpet for the film's premiere. The film also opened the 56th Asia Pacific Film Festival on 13 December 2013 in Macau before it was theatrically released on 19 December 2013 in Hong Kong. In addition, Firestorm also had its North American premier at the 57th San Francisco International Film Festival on 3 May 2014.