Battle Royale 1 (2000)

AKA: Batoru Rowaiaru
Directed by: Kinji Fukasaku
Starring: Takeshi Kitano (Kitano), Tatsuya Fujiwara (Shuya Nanahara), Aki Maeda (Noriko Nakagawa), Tarō Yamamoto (Kawada), Kou Shibasaki (Mitsuko), Takashi Tsukamoto (Mimura), Sousuke Takaoka (Sugimura), Yūko Miyamura (Training Video Girl)
Country: Japan, Asian Cinema
Language: Japanese
Runtime: 02:01:52
Genres: Gore, Teen-oriented, Old-Young

Plot – Spoilers:
Battle Royale. Often imitated. Never equaled.

In a world where civil war is imminent, the adults send schoolkids to an uninhabited island to fight each other unto death. The kids that have been chosen this time seem like a bunch of friends out on a class trip. But once they’re forced into the game, simmering resentments take over, smashing their phony unity to smithereens.

The version here is the longer Director’s Cut.