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Where to watch Children of the Sea (2019) tonight

Children of the Sea (2019) runs 1 h 51 min, is rated NR in the US and averages 7.1 from 360 TMDB members. Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and…

Runtime
1 h 51 min — ends 9:51 pm if you start at 8:00 pm
Rated
NR (US)
Genres
Animation, Fantasy, Adventure, Mystery
Released
June 7, 2019
TMDB rating
7.1 / 10 from 360 votes
Director
Ayumu Watanabe
Starring
Mana Ashida, Hiiro Ishibashi, Seishu Uragami, Win Morisaki
Language
Japanese
Original title
海獣の子供
Good for a group? Yes — a crowd movie.Animation and Fantasy hold a room: people can talk, laugh or scream over it and still follow what is going on.

Where to watch it tonight

Availability loads live for your country. See where Children of the Sea streams (JustWatch via TMDB) →

Streaming availability by JustWatch. In the US, as of 2026-11-07: Hoopla (free).

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Questions people ask

How long is Children of the Sea?
Children of the Sea is 1 h 51 min long (111 minutes). If you start it at 8:00 pm it ends at 9:51 pm; add about 20 minutes if you watch trailers first.
What is Children of the Sea rated?
Children of the Sea is rated NR in the US.
Is Children of the Sea a good movie to watch with a group?
Yes — a crowd movie. Animation and Fantasy hold a room: people can talk, laugh or scream over it and still follow what is going on.
Where can I stream Children of the Sea?
In the US, as of 2026-11-07: Hoopla (free). Availability changes often; this page loads the live list for your country (streaming availability by JustWatch).

Lists it could be on

If you like Children of the Sea

Children of the Sea on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Children of the Sea poster

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-11-03. TMDBThis product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists