Movie guide
The Door into Summer (2021): movie guide
The Door into Summer (2021) is a Science Fiction, Drama running about 118 minutes. It holds a TMDB score of 6.4/10 from 53 votes. Notable cast includes Kento Yamazaki, Kaya Kiyohara, Naohito Fujiki, Natsuna Watanabe. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2021-06-25
- Runtime: 118 min
- TMDB: 6.4/10
- Genres: Science Fiction, Drama
Last updated: 2026-11-11 · First listed: 2021-06-25
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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.
Cast highlights
The Door into Summer features Kento Yamazaki, Kaya Kiyohara, Naohito Fujiki, Natsuna Watanabe, Hidekazu Mashima, Taizo Harada. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2021-06-25. Runtime: 118 minutes. TMDB score: 6.4/10 (53 votes). Genres: Science Fiction, Drama. Original language: ja. Status: Released.
Discover The Door into Summer on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse The Door into Summer, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is The Door into Summer?
- The Door into Summer is listed as Science Fiction, Drama on TMDB.
- How long is The Door into Summer?
- The Door into Summer runs about 118 minutes.
- Who stars in The Door into Summer?
- Cast highlights include Kento Yamazaki, Kaya Kiyohara, Naohito Fujiki, Natsuna Watanabe, Hidekazu Mashima, Taizo Harada.
- Does Cinema Box stream The Door into Summer?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track The Door into Summer?
- Open the The Door into Summer page on cinemabox.app or install the official Cinema Box Android app from Google Play for watchlists and discovery tools.
