Premise: Battle Royale II: Requiem (バトル・ロワイアルＩＩ　【鎮魂歌】 , "Batoru rowaiaru tsū: "Rekuiemu"" ) , abbreviated as BRII ("Bii āru tsū"), is a 2003 Japanese dystopian action film. It is a sequel to the 2000 film, "Battle Royale", which in turn was based upon a controversial 1999 novel of the same title by Koushun Takami. An extended version of the film is titled Battle Royale II: Revenge.
Hypothesis: Battle Royale II:Requiem was released four years after the novel Battle Royale.