We Couldn't Become Adults
ボクたちはみんな大人になれなかった
Synopsis
Prodded by a friend request, a feckless forty-something recalls his past relationships from the 90s onward, looking for his vanished hopes and dreams.
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
We Couldn’t Become Adults | Official Trailer | NetflixOfficial
Type: Trailer • Published 2021-09-15
Top Cast
Explore Star Directory →
Mirai Moriyama
Makoto Satō
Sairi Ito
Kaori Kato
Masahiro Higashide
Kenta Sekiguchi
Sumire
Sū
Atsushi Shinohara
Toshihiko Nanase
Yuko Oshima
Megumi Ishida
Masato Hagiwara
Hideaki Miyoshi
Takehiro Hira
Keiichiro Sanai
Moemi Katayama
Ayaka Iwai
Masanobu Takashima
Takayuki Onda
LaSalle Ishii
Mitsuo Oguro
Amane Okayama
Taniguchi
Eita Okuno
Miyajima
Hideko Hara
Megumi's Mother
Mika Akizuki
Release History & Theatrical Window
November 5, 2021
VOD & Digital Platforms
Key Information & Fast Facts
- Director
- Yoshihiro Mori
- Screenplay & Story
- Ryo Takada
- Original Score
- Naoyuki Honzawa, Yosuke Kakegawa
- Original Title
- ボクたちはみんな大人になれなかった
- Country of Origin
- Japan
- Spoken Languages
- Japanese
- Runtime
- 2h 4m
- Production Studios
- C&I entertainment
Creative Leadership & Key Crew
Yoshihiro Mori
Ryo Takada, Moegara
Naoyuki Honzawa, Yosuke Kakegawa
Akiyoshi Yoshida
Norihiro Iwama
Naoto Kuribayashi, Kaata Sakamoto, Teruhisa Yamamoto
Department Leadership Roster
Naoyuki Honzawa
Original Music Composer
Ryo Takada
Screenplay
Yosuke Kakegawa
Original Music Composer
Akiyoshi Yoshida
Director of Photography
Yoshihiro Mori
Director
Naoto Kuribayashi
Producer
Teruhisa Yamamoto
Producer
Norihiro Iwama
Editor
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
International Certification Matrix
Interdit aux moins de 12 ans — 12+ only.
Suitable only for 15 years and over.
Production Stills & Gallery
Official cinematic photography and background stills for We Couldn't Become Adults.
Featured In Curated Collections
Editorial lists, community rankings, and cinematic collections featuring We Couldn't Become Adults.
***2021***
Netflix
All Netflix Movies — USA
Movies TMDB currently marks as available with a Netflix subscription in the United States. Generated 2026-08-10.
Netflix Movies
E.A.F.U
Mix of Eastern Asia films, mostly bitersweet and/or disturbing.
Movies that have been on Netflix
**Automated** TMDB list of movies that have been on Netflix.<br>See github.com/paolobasso99/netflix-movies-to-tmdb <br>Last update: 9 May 2026
Similar Titles to We Couldn't Become Adults
Movies sharing stylistic DNA, tone, and thematic storytelling
6.0
6.5
7.1
5.5
6.5
5.0
7.0
7.5
7.0
7.5
4.1
6.0
7.6
5.8
7.3
6.2
9.0
More Like We Couldn't Become Adults
Recommended titles matching themes, cast, and genres.
Frequently Asked Questions About We Couldn't Become Adults
Quick factual answers about cast, synopsis, director, box office, and release information.
What is We Couldn't Become Adults about?
Prodded by a friend request, a feckless forty-something recalls his past relationships from the 90s onward, looking for his vanished hopes and dreams.
Who directed We Couldn't Become Adults?
We Couldn't Become Adults was directed by Yoshihiro Mori.
Who stars in We Couldn't Become Adults?
The principal cast of We Couldn't Become Adults includes Mirai Moriyama, Sairi Ito, Masahiro Higashide, Sumire, Atsushi Shinohara.
When was We Couldn't Become Adults released and how long is it?
We Couldn't Become Adults was released in 2021 with a total runtime of 2h 4m.
Who composed the musical score for We Couldn't Become Adults?
The original motion picture soundtrack for We Couldn't Become Adults was composed by Naoyuki Honzawa, Yosuke Kakegawa.
Is We Couldn't Become Adults based on a book or true story?
We Couldn't Become Adults is adapted from the following source material: Novel: "Moegara".
What is the age rating and content advisory for We Couldn't Become Adults?
We Couldn't Become Adults holds official age classifications: FR: 12 (Interdit aux moins de 12 ans — 12+ only.); GB: 15 (Suitable only for 15 years and over.).