Battle Royale (2000) ending / spoiler
Kawada, Shuya and Noriko are the only 3 students remaining. Kawada seems to turn on them and apparently kills them, and is then announced the winner. But somehow he tricked Kitano, and Shuya and Noriko are still alive and all 3 confront him. Shuya thinks that Kitano is going to kill Noriko and kills him first. They take a boat off the island, but Kawada dies on the way. Shuya and Noriko become fugitives, wanted for the murder of Kitano.
Submitted by Tight Rope