Silence Has No Wings (1966)
Original title: とべない沈黙
Silence Has No Wings is a 1966 Japanese-language drama movie directed by Kazuo Kuroki, with a running time of 1h 40m. It stars Mariko Kaga, Hiroyuki Nagato and Shoichi Ozawa.
After a young boy captures a rare butterfly in Nagasaki, a caterpillar begins a relay-trip toward the northern tip of Hokkaido, serving as a silent witness to a series of vignettes featuring people struggling with the psychological and social scars of post-war Japan.