04 September 2026 Animated, Drama, War 60 mins
San and Mayu attend an all-girls school on a warm and tranquil island. When war reaches their shores, they are ordered to help nurse the wounded in a military hospital hidden away in a cave. Amidst escalating death and brutality, the friends struggle to find solace in their fragile lives.
Watch the official cocoon - One Summer of Girlhood 2026 trailer in HD below.
Marika Ito as San (voice)
Hikari Mitsushima as Mayu (voice)
Yoko Hikasa as Tamaki (voice)
Rena Motomura as Hina (voice)
Chinatsu Akasaki as Mari (voice)
Aoi Koga as Yuri (voice)
Yume Miyamoto as Kaede (voice)
Izumi Aoyagi as Shiho (voice)
Miyuki Sawashiro as Kaho (voice)
Umeka Shouji as Sensei (voice)
Maria Abo as (voice)
Saaya Okutomo as (voice)
Hayato Kimura as (voice)
Saki Kobari as (voice)
Norihito Hase as (voice)
Junpei Baba as (voice)
Yukimitsu Ina Director
Hitomi Tateno Producer
Kensuke Ushio Original Music Composer
Marika Ito Theme Song Performance
Kiyotaka Kawada Sound Effects
Machiko Kyo Comic Book
Hitomi Tateno Animation Director
mebachi Character Designer
Tomomi Ozaki Prop Designer
Tomomi Ozaki Character Designer
Yukimitsu Ina Screenplay
Taku Kishimoto Screenplay
Youichi Watanabe Art Direction
Nobuko Mizuta Color Designer
Jiro Tazawa Director of Photography
Masahiro Goto Editor
コクーン Trailer
コクーン ～ ある夏の少女たちより～ Trailer
Cocoon Trailer
cocoon ~Aru Natsu no Shōjo-tachi Yori~ Trailer
cocoon ~Aru Natsu no Shoujo-tachi Yori~ Trailer
cocoon: Aru Natsu no Shōjo-tachi Yori Trailer
cocoon（コクーン） ～ある夏の少女たちより～ Trailer
Кокон Trailer
cocoon – One Summer of Girlhood Trailer
Cocoon ~From the Girls of Summer~ Trailer
Cocoon: From the Girls of Summer Trailer
United Kingdom 08 November 2026
Japan 25 August 2025
Netherlands 25 September 2026
United States 04 September 2026
If you liked the cocoon - One Summer of Girlhood trailer, you may like these ones:
17 April 1981
Resistance leader Omar Mukhtar opposes Italian colonization before World War II. The brutal guerrilla war against Italian General Rodolfo Graziani and the Fascist forces of Benito Mussolini highlights the struggle for Libyan independence and the harsh tactics utilised by the colonisers.
15 September 1990
Masaki, a baseball player and gas-station attendant, gets into trouble with the local Yakuza and goes to Okinawa to get a gun to defend himself.
17 September 1999
The Trench tells the story of a group of young British soldiers on the eve of the Battle of the Somme in the summer of 1916, the worst defeat in British military history.
12 September 2025
In 1575, the young soldier Miguel de Cervantes is captured on the high seas by Barbary pirates and taken to Algiers as a hostage.
25 December 2026
In 1963, as Japan emerged from the shadows of war into an era of extraordinary transformation, an unlikely song made music history.
07 August 2026
A son films his father's addiction, hoping to document his recovery; but as he sacrifices everything to save him, he must decide how much he'll lose for someone who may not want saving.
01 May 2003
Based on the true story of the rise and fall of poker legend Stu "The Kid" Ungar.
28 February 2026
A moment of weakness after a humiliating breakup leads Zahra, a young Muslim woman to play a forbidden lottery ticket.
28 September 2005
A Midwestern housewife supports her large family by entering contests for ad slogans sponsored by consumer product companies, while dealing with abuse from her alcoholic husband.
20 February 2009
Officer Blanca Bravo arrives in Juarez, Mexico — a grim nexus of corporate colonialism and sexual tourism — to investigate a rash of killings targeting female migrant workers.
01 May 1996
The story of Valerie Solanas, a '60s radical who preached misandry in her "SCUM" manifesto. She wrote a screenplay for a film that she wanted Andy Warhol to produce, but he repeatedly ignored her.
01 April 2018
A teenage girl is held captive in the home of a wealthy family. She is befriended by the family's young gardener, himself an illegal from Mexico.
These some of the most viewed trailers for movies released in 2026:
16 December 2026
Beloved heroes from three distinct universes are set on a deadly collision course and face an existential threat unlike anything they've ever encountered.
13 May 2026
After breaking the mysterious "One Wish Willow" to win his crush's heart, a hopeless romantic finds himself getting exactly what he asked for but soon discovers that some desires come at a dark, sinister price.
20 August 2026
After Acme products fail him one too many times in his dogged pursuit of the Roadrunner, Wile E. Coyote decides to hire a billboard lawyer to sue the Acme Corporation.
30 September 2026
Lowen Ashleigh, hired to ghostwrite for best-selling author Verity Crawford, uncovers Verity's autobiographical notes, and becomes involved in what may prove to be a lethal conspiracy.
27 May 2026
A strange doorway appears in the basement of a furniture showroom.
19 August 2026
Gemma, a young mother raising her daughter in the house she grew up in, discovers she can travel into The Further, where she possesses an ability to bring what lives there back to the real world.
14 May 2026
A mother moves into a new house with her two children. One night she must leave the siblings home alone.
28 August 2026
Forced to hide in the shadows, fugitive hero Erik Reed must clear his name to reunite with his family.
24 September 2026
A quiet horticulturalist harboring a secret life as a lethal assassin finds his true identity jeopardized when he forms an unlikely friendship with a witnesses to police corruption.
17 June 2026
When Bonnie receives a Lilypad tablet as a gift and becomes obsessed, Buzz, Woody, Jessie and the rest of the gang's jobs become exponentially harder when they have to go head to head with the all-new threat to playtime.
03 June 2026
Twenty-six years after outrunning a suspiciously familiar masked killer, the Core Four are back in the killer's crosshairs and no horror movie IP is safe.
09 September 2026
The Owens sisters must confront the dark curse that threatens to unravel their family once and for all.
Have you watched cocoon - One Summer of Girlhood yet? What did you think about it?
Artwork, screen shots, trailers and other imagery is © 2026 NHK Enterprises, NHK, Sasayuri.