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Trailer+1 trailer

cocoon - One Summer of Girlhood

2026Movie1 h 0 min

AnimationDrama
75
GreatGoodWatch score
IMDb7.1Letterboxd3.8/5

A deeply moving, tense animated movie about history and war.

Good for friends night · thought-provoking · adults

Skip it if you want something to laugh at · you need an uplifting mood

Where to watch

Set your services

Not streaming in United States. Where it is:

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Not for warmth, laughs or comfort.

Movies with

Story

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.

Feels like

  • WWII Drama
  • Coming-of-Age
  • Survival Story
  • Emotional Tragedy
  • Historical Anime
  • Okinawa Battlefield
  • Girls as Nurses
  • Anti-War Theme
  • Psychological Intensity

Cast

24 of 24

Crew

Directed by
Yukimitsu Ina
Written by
Taku Kishimoto, Yukimitsu Ina
Produced by
Hitomi Tateno, Kohei Nehyo
Music by
Kensuke Ushio

Everyone

Pick a department, or search for a name or a job (“editor”, “stunt”).

Facts

September 4, 2026 · 1 h 0 min · Violence, Suicide Themes, Disturbing Imagery

Released
September 4, 2026
Runtime
1 h 0 min
Content
Violence, Suicide Themes, Disturbing Imagery
Genres
Animation, Drama, War
Original language
Japanese
Made in
Japan
Available in
1 country
Keywords
based on true story

Q&A

5 questions, like "Where can I stream cocoon - One Summer of Girlhood?"

Questions about cocoon - One Summer of Girlhood

Quick answers from GoodWatch data.

Where can I stream cocoon - One Summer of Girlhood?

It streams in 1 other country, but not in the United States.

Is cocoon - One Summer of Girlhood worth watching?

75
GreatGoodWatch score

Mostly, it's well received, with a GoodWatch score of 75 (IMDb 7.1 and Letterboxd 3.8 out of 5).

Will I feel good after watching cocoon - One Summer of Girlhood?

BleakHopeful

Probably not: the title analysis rates it 8 of 10 for bleakness and 8 for melancholy, against 3 for hopefulness.

Is cocoon - One Summer of Girlhood plot-driven or character-driven?

CharactersPlot

Mostly character-driven: it leans on pathos (9 of 10) and character depth (8 of 10) more than on its plot.

Is cocoon - One Summer of Girlhood in English?

Japanese

No, it was made in Japanese.