進撃の巨人 ATTACK ON TITAN

The name of this movie is 進撃の巨人 ATTACK ON TITAN released in 2015-08-12 and it's main theme is 100 years ago, titans suddenly appeared on Earth. Soon, human civilization veered on collapse due to the titans. Humans then built a giant wall to defend themselves. Within the giant walls, humans lived in peace, but, 100 years later, the giant wall is broken..