Poster for The Door into Summer

The Door into Summer (2021) Parents Guide: Is the movie OK for kids?

Age Rating, Sex, Violence & Language

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.

Rated NR • 2021 • 1h 58m

Age
13+

This film is unrated, but its content is comparable to a PG-13 rating. "The Door into Summer" tells the story of Soichiro, a robotics scientist who is cryogenically frozen in 1995 and awakens in 2025, determined to change the past. The movie's content concerns for parents revolve primarily around mature themes, including a profound betrayal by loved ones, loss, and a complicated, unconventional romance between Soichiro and his much… Sign up for the full guide

Cast

Kento Yamazaki
Kento Yamazaki
Kaya Kiyohara
Kaya Kiyohara
Naohito Fujiki
Naohito Fujiki
Natsuna Watanabe
Natsuna Watanabe
Hidekazu Mashima
Hidekazu Mashima
Taizo Harada
Taizo Harada
Rin Takanashi
Rin Takanashi
Kenta Hamano
Kenta Hamano
Tomorowo Taguchi
Tomorowo Taguchi
Ryoka Minamide
Ryoka Minamide
JH
Jun Hashizume
Shohei Abe
Shohei Abe
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Is The Door into Summer appropriate for kids?

This film is unrated, but its content is comparable to a PG-13 rating. "The Door into Summer" tells the story of Soichiro, a robotics scientist who is cryogenically frozen in 1995 and awakens in 2025, determined to change the past. The movie's content concerns for parents… Read more — free account

Content severity in The Door into Summer

Sex Moderate 4/10
Violence Strong 5/10
Language Moderate 3/10
Substances Mild 2/10
Themes Strong 6/10

What happens in The Door into Summer, moment by moment

  1. 0:15 🔥 Mature Themes 3/10
  2. 0:26 ⚔ Violence & Gore 5/10
  3. 0:28 🔥 Mature Themes 6/10
Unlock all 11 flagged moments — free account →

Sex and nudity in The Door into Summer

The central romantic plot involves the protagonist and a girl he raised as a younger sister, Riko. This is primarily portrayed through emotional connection, longing, and protective feelings rather than overt sexuality. The time travel element is used to resolve the age gap issue. There is one gentle, emotional kiss between the two leads.

Violence and gore in The Door into Summer

Violence is infrequent and not graphic. The most significant scene involves the protagonist being betrayed, drugged with an injection, and forcibly placed into a cryogenic sleep chamber against his will. There are also a few brief scuffles and tense confrontations, but no significant injuries or blood are shown.

Language in The Door into Summer

Language is very mild. There are a few instances of frustrated exclamations or mild insults, equivalent to words like "damn."

Drugs, alcohol, and smoking in The Door into Summer

There are a few scenes in which adult characters drink alcohol (beer or whiskey) in social or domestic settings, such as at a bar or at home while contemplating events. There is no depiction of drunkenness or substance abuse.

Mature themes in The Door into Summer

The film deals with several mature themes. The strongest is the theme of betrayal, as the main character is cheated out of his life's work and his future by his fiancée and business partner. Other themes include the loss of time, grief, the ethics and consciousness of artificial intelligence, and the determined pursuit of a second chance. The unorthodox nature of the central romance is a recurring thematic element.

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Frequently Asked Questions

Is The Door into Summer appropriate for kids?

Bontent's parent guide suggests The Door into Summer is best for ages 13+. It's rated NR. This film is unrated, but its content is comparable to a PG-13 rating. "The Door into Summer" tells the story of Soichiro, a robotics scientist who is cryogenically frozen in 1995 and awakens in 2025, determined to…

What age rating does The Door into Summer have?

The Door into Summer is officially rated NR. Bontent's independent parent guide recommends it for ages 13+.

What is The Door into Summer about?

This film is unrated, but its content is comparable to a PG-13 rating. "The Door into Summer" tells the story of Soichiro, a robotics scientist who is cryogenically frozen in 1995 and awakens in 2025, determined to change the past. The movie's content concerns for parents revolve primarily around mature themes…

Is there sex or nudity in The Door into Summer?

The central romantic plot involves the protagonist and a girl he raised as a younger sister, Riko. This is primarily portrayed through emotional connection, longing, and protective feelings rather than overt sexuality. The time travel element is used to…

How violent is The Door into Summer?

Violence is infrequent and not graphic. The most significant scene involves the protagonist being betrayed, drugged with an injection, and forcibly placed into a cryogenic sleep chamber against his will. There are also a few brief scuffles and tense…

Is the language in The Door into Summer appropriate for kids?

Language is very mild. There are a few instances of frustrated exclamations or mild insults, equivalent to words like "damn."

Are drugs, alcohol, or smoking shown in The Door into Summer?

There are a few scenes in which adult characters drink alcohol (beer or whiskey) in social or domestic settings, such as at a bar or at home while contemplating events. There is no depiction of drunkenness or substance abuse.

What mature themes appear in The Door into Summer?

The film deals with several mature themes. The strongest is the theme of betrayal, as the main character is cheated out of his life's work and his future by his fiancée and business partner. Other themes include the loss of time, grief, the ethics and…

How long is The Door into Summer?

The Door into Summer runs 118 minutes, directed by Takahiro Miki, released in 2021.

Where can I read the full The Door into Summer parent guide?

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