The Eternal Zero

The Eternal Zero is a 2013 Japanese historical war film directed, co-written, and with visual effects by Takashi Yamazaki. Based on the eponymous 2006 novel by Naoki Hyakuta, the film starts with a frame story set in 2004, where a Japanese man in his twenties learns that he is the grandson of a kamikaze military aviator who died in World War II, and then investigates the life story of his grandfather.