Release calendarTop 250 moviesMost popular moviesBrowse movies by genreTop box officeShowtimes & ticketsMovie newsIndia movie spotlight
    What's on TV & streamingTop 250 TV showsMost popular TV showsBrowse TV shows by genreTV news
    What to watchLatest trailersIMDb OriginalsIMDb PicksIMDb SpotlightFamily entertainment guideIMDb Podcasts
    OscarsEmmysSan Diego Comic-ConSummer Watch GuideToronto Int'l Film FestivalSTARmeter AwardsAwards CentralFestival CentralAll events
    Born todayMost popular celebsCelebrity news
    Help centerContributor zonePolls
For industry professionals
  • Language
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Watchlist
Sign in
  • Fully supported
  • English (United States)
    Partially supported
  • Français (Canada)
  • Français (France)
  • Deutsch (Deutschland)
  • हिंदी (भारत)
  • Italiano (Italia)
  • Português (Brasil)
  • Español (España)
  • Español (México)
Use app
  • Cast & crew
  • User reviews
  • Trivia
  • FAQ
IMDbPro

The Door Into Summer

Original title: Natsu e no tobira - Kimi no iru mirai e - : The Door Into Summer
  • 2021
  • 1h 58m
IMDb RATING
6.4/10
1.4K
YOUR RATING
The Door Into Summer (2021)
An inventor of robotics technology is robbed by his girlfriend and business partner and sent to the future via cryogenic sleep. But when he awakes 30 years later, he is assisted by a humanoid robot originally his own creation.
Play trailer1:31
1 Video
1 Photo
DramaMysterySci-Fi

An inventor of robotics technology is robbed by his girlfriend and business partner and sent to the future via cryogenic sleep. But when he awakes thirty years later, he is assisted by a hum... Read allAn inventor of robotics technology is robbed by his girlfriend and business partner and sent to the future via cryogenic sleep. But when he awakes thirty years later, he is assisted by a humanoid robot originally his own creation.An inventor of robotics technology is robbed by his girlfriend and business partner and sent to the future via cryogenic sleep. But when he awakes thirty years later, he is assisted by a humanoid robot originally his own creation.

  • Director
    • Takahiro Miki
  • Writers
    • Robert A. Heinlein
    • Tomoe Kanno
  • Stars
    • Kento Yamazaki
    • Kaya Kiyohara
    • Natsuna
  • See production info at IMDbPro
  • IMDb RATING
    6.4/10
    1.4K
    YOUR RATING
    • Director
      • Takahiro Miki
    • Writers
      • Robert A. Heinlein
      • Tomoe Kanno
    • Stars
      • Kento Yamazaki
      • Kaya Kiyohara
      • Natsuna
    • 22User reviews
    • 11Critic reviews
  • See production info at IMDbPro
  • Videos1

    Trailer
    Trailer 1:31
    Trailer

    Photos

    Top cast9

    Edit
    Kento Yamazaki
    Kento Yamazaki
    • Soichiro Takakura
    Kaya Kiyohara
    Kaya Kiyohara
    • Riko Matsushita
    Natsuna
    Natsuna
    • Rin Shiraishi
    Naohito Fujiki
    Naohito Fujiki
    • Android
    Kenta Hamano
    • Gota
    Taizô Harada
    • Taro Sato
    Hidekazu Mashima
    • Kazuhito
    Tomorô Taguchi
    Tomorô Taguchi
    • Professor Toi
    Rin Takanashi
    Rin Takanashi
    • Midori Sato
    • Director
      • Takahiro Miki
    • Writers
      • Robert A. Heinlein
      • Tomoe Kanno
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews22

    6.41.3K
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10

    Featured reviews

    10peter-112-44757

    As perfect as it gets

    I am the founder of the 2007 Heinlein Centennial convention, so not a casual fan. And I'm aware of how much reverence fans have for the novel. This adaptation is simply ideal. The love and respect for the original glow from the screen; you'll even recognize everything about Pete the cat. Every change is thoughtful, necessary, and makes the heart of the original shine even further. The creators of this work are clearly Heinlein fans of the first order and they have made a work he would be proud of.
    6soeprijo19

    Live on a re-written future!

    Many movies revolve around romance and time travel, and this one is following that genre. The first 30 minutes actually was quite interesting, but somehow it went downhill after that. Lack of tension and also maybe lack of villains, perhaps?!

    The difficulty of making a good movie with all the known outcomes is the lack of suspense. The scriptwriters should know that, the director too, but this movie was allowed just to roll by after it's all been figured out in just the first 60 minutes. Even a twist at the end of the film doesn't help much.

    Mediocre 6/10.
    10ilyatsaryuk

    Simply amazing

    I'm a huge fan of the novel and I was a bit skeptical after reading some negative reviews from acclaimed "critics". After the first 20 minutes of the movie I realized that sci-fi adaptations have a chance...in Japan. Hollywood lost it and I no longer waiting for any good adaptations from them. But Japan is a totally different story, they pleased my heart and soul with this adaptation, truly perfect. They changed some things to fit the story but I like these changes, organic and logical. People who think that the movie is boring should watch another crappy Hollywood adaptation, for the rest of us I hope Japan will deliver more good movies.
    8ghatbkk

    Excellent adaption

    It is unusual for Science-fiction stories to be well-adapted by the film industry. Robert A. Heinlein now has two good adaptions - Predestination and The Door Into Summer.

    Well done.
    9oaksong

    It says "Enter"

    I've been a Heinlein fan for decades. That's not required. This is a beautifully made rendering of the book. Of course it has a Japanese vibe, and that doesn't hurt. It brilliantly captures the humor and both cat Pete and the other are spot on. Watched it subbed on Netflix.

    More like this

    Your Lie in April
    6.8
    Your Lie in April
    Orange
    6.8
    Orange
    Love Like the Falling Petals
    6.6
    Love Like the Falling Petals
    L.DK
    6.1
    L.DK
    Heroine Disqualified
    6.3
    Heroine Disqualified
    Turn to me Mukai-kun
    7.3
    Turn to me Mukai-kun
    Wolf Girl and Black Prince
    5.9
    Wolf Girl and Black Prince
    The Door into Summer
    The Door into Summer
    One Week Friends
    6.8
    One Week Friends
    The Fable: The Killer Who Doesn't Kill
    6.8
    The Fable: The Killer Who Doesn't Kill
    Drawing Closer
    7.6
    Drawing Closer
    From Me to You: Kimi ni Todoke
    7.0
    From Me to You: Kimi ni Todoke

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      Based on novel "The Door into Summer" by Robert A. Heinlein (published 1957 by Doubleday).

    Top picks

    Sign in to rate and Watchlist for personalized recommendations
    Sign in

    FAQ

    • How long is The Door Into Summer?Powered by Alexa

    Details

    Edit
    • Release date
      • February 19, 2021 (Japan)
    • Country of origin
      • Japan
    • Official site
      • Official Site
    • Language
      • Japanese
    • Also known as
      • Cánh Cửa Đến Mùa Hè
    • Production company
      • Toho
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      1 hour 58 minutes
    • Color
      • Color
    • Sound mix
      • Dolby Digital
    • Aspect ratio
      • 1.85 : 1

    Contribute to this page

    Suggest an edit or add missing content
    • Learn more about contributing
    Edit page

    More to explore

    Recently viewed

    Please enable browser cookies to use this feature. Learn more.
    Get the IMDb App
    Sign in for more accessSign in for more access
    Follow IMDb on social
    Get the IMDb App
    For Android and iOS
    Get the IMDb App
    • Help
    • Site Index
    • IMDbPro
    • Box Office Mojo
    • License IMDb Data
    • Press Room
    • Advertising
    • Jobs
    • Conditions of Use
    • Privacy Policy
    • Your Ads Privacy Choices
    IMDb, an Amazon company

    © 1990-2025 by IMDb.com, Inc.