The Door into Summer
夏への扉 ―キミのいる未来へ―
“An adventure spanning 30 years starts now.”
Synopsis
A pioneering roboticist awakens in 2025 after decades in cryosleep. To change the past and reunite with his adopted sister, he seeks a way back to 1995.
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
映画『夏への扉 ―キミのいる未来へ―』本予告Official
Type: Trailer • Published 2021-06-23
Top Cast
Explore Star Directory →
Kento Yamazaki
Soichiro Takakura
Kaya Kiyohara
Matsushita Riko
Naohito Fujiki
Humanoid Robot
Natsuna Watanabe
Shirashi Rin
Hidekazu Mashima
Matsushita Kazuhito
Taizo Harada
Sato Taro
Rin Takanashi
Sato Midori
Kenta Hamano
Tsuboi Gota
Tomorowo Taguchi
Professor Toi
Ryoka Minamide
Young Soichiro Takakura
Jun Hashizume
Matsushita Koichi
Shohei Abe
Insurance Company Employee
Takayuki Hamatsu
Lawyer
Toru Nomaguchi
Doctor
Ryoko Kobayashi
Insurance Company Model
Arisa Nakajima
Humanoid Robot
Noa Tanaka
Young Matsushita Riko
Yutaro Sato
Young Tsuboi Gota
Key Information & Fast Facts
- Director
- Takahiro Miki
- Screenplay & Story
- Tomoe Kanno
- Original Score
- Yuki Hayashi
- Original Title
- 夏への扉 ―キミのいる未来へ―
- Country of Origin
- Japan
- Spoken Languages
- Japanese
- Runtime
- 1h 58m
- Production Studios
- TOHO, Aniplex, Happinet, Venture Bank Entertainment, Nippan Group Holdings, CyberAgent, Hayakawa Publishing, Lawson Entertainment, Bridgehead, CREDEUS
Creative Leadership & Key Crew
Takahiro Miki
Tomoe Kanno, Robert A. Heinlein
Yuki Hayashi
Mitsuru Komiyama
Takeshi Wada
Vince Gerardis, Shinzo Matsuhashi, Yuya Satoyoshi
Department Leadership Roster
Takahiro Miki
Director
Tomoe Kanno
Screenplay
Yuki Hayashi
Original Music Composer
Shinzo Matsuhashi
Producer
Yuya Satoyoshi
Producer
Takeshi Wada
Editor
Mitsuru Komiyama
Director of Photography
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
International Certification Matrix
Suitable only for 12 years and over.
Production Stills & Gallery
Official cinematic photography and background stills for The Door into Summer.
Featured In Curated Collections
Editorial lists, community rankings, and cinematic collections featuring The Door into Summer.
Watched
I watch way too much but not everything till the end.
list17
Japanese Movies I watched
2020's Movies
Movies released from 2020 to 2029 that I've seen.
Time Travel
Netflix
Similar Titles to The Door into Summer
Movies sharing stylistic DNA, tone, and thematic storytelling
5.2
5.9
7.0
5.9
4.6
6.6
6.3
8.0
4.2
6.4
5.7
7.0
5.2
5.0
4.1
7.2
6.4
More Like The Door into Summer
Recommended titles matching themes, cast, and genres.
Frequently Asked Questions About The Door into Summer
Quick factual answers about cast, synopsis, director, box office, and release information.
What is The Door into Summer about?
A pioneering roboticist awakens in 2025 after decades in cryosleep. To change the past and reunite with his adopted sister, he seeks a way back to 1995.
Who directed The Door into Summer?
The Door into Summer was directed by Takahiro Miki.
Who stars in The Door into Summer?
The principal cast of The Door into Summer includes Kento Yamazaki, Kaya Kiyohara, Naohito Fujiki, Natsuna Watanabe, Hidekazu Mashima.
When was The Door into Summer released and how long is it?
The Door into Summer was released in 2021 with a total runtime of 1h 58m.
Who composed the musical score for The Door into Summer?
The original motion picture soundtrack for The Door into Summer was composed by Yuki Hayashi.
Is The Door into Summer based on a book or true story?
The Door into Summer is adapted from the following source material: Novel: "Robert A. Heinlein".
What is the age rating and content advisory for The Door into Summer?
The Door into Summer holds official age classifications: GB: 12 (Suitable only for 12 years and over.).