Sailor Moon S: The Movie (initially released with the subtitle Hearts of Ice in North America) is the second Sailor Moon film. This time around, it's based on a manga short story written by Naoko Takeuchi. It was originally released in Japan on December 4, 1994, between episodes 116 and 117 of the '90s anime, with it premiering at the winter 1994 Toei Anime Fair (along with a film from the Aoki Densetsu Shoot! series and Osawaga! Super Baby). The film was dubbed into English by Optimum Productions in 1999 and was eventually picked up by Viz Media in 2014 along with the rest of the franchise for a re-dub using their own cast.
Princess Snow Kaguya, an extraterrestrial entity, plots to freeze the Earth. When one of her comet's fragments lands on the planet, she decides to send her mooks to search for the fragment. Meanwhile, astronomer Kakeru Ōzora discovers the fragment and begins his research on it. However, the fragment sucks his life force and Kaguya begins her plans to freeze the Earth. It's up to the Sailor Guardians to put a stop to Kaguya's plans once and for all.
This film provides examples of:
- Adaptational Jerkass: Kakeru was cold in the original manga story and his tension with Himeko focused more on his heart problems and how he gave up on being an astronaut. Here, he flips his shit at Himeko simply because she doesn't believe Princess Kaguya really does live on the moon.
- Adaptational Wimp: Himeko had more of a role to play in the manga's conflict than she does here. In the manga, when she returns to Kakeru's lab and sees how much his crystal's grown, she realizes immediately this thing's negatively affecting him and smashes it to bits declaring she'll definitely destroy the meteor. Nothing like that happens in the movie.
- All Your Powers Combined: The Sailor Guardians have to use the Silver Crystal to kill Kaguya and destroy her comet.
- Big Damn Heroes: Tuxedo Mask arrives just in time help Sailor Moon destroy the last of the Snow Dancers attacking Tokyo.
- Break-Up/Make-Up Scenario: Luna becomes attached to Kakeru, which crushes Artemis. By the end of the film, Artemis and Luna reconcile with each other.
- Canon Discontinuity: Averted, since most of the details point to it taking place after episode 122 and it's based on Naoko Takeuchi's short story. There are however odd elements, like the personalities of the Outer Sailor Guardians, which are more like their manga counter parts, as it's a direct adaptation.
- Casting Gag: Melissa Fahn voices Princess Snow Kaguya in the 2018 dub after playing Glinda in Wicked on Broadway, who is another role loosely inspired by "The Snow Queen" fairy tale character.
- Costume-Test Montage: In the opening of the film, Minako tries out various costumes at a local store.
- Curb-Stomp Battle: The Sailor Guardians easily defeat the Snow Dancers in Tokyo. Sailor Moon herself end up on the receiving end thanks to Kaguya stopping her Rainbow Moon Heartache technique.
- Foreshadowing: Luna wishes to become human to help Kakeru get over his illness and help him. Guess which form she changes into at the end of the film?
- Humanity Ensues: Luna transforms into a human so that she can help Kakeru reconcile with Himeko. Notably, her human form is noted to be "A year younger then Usagi" in appearance in Takeuchi's own notes, which causes issues with the Canadian dub where Luna was given a British accent. This form also makes further appearances in the manga, where it's revealed the other cats can take such forms in times of crisis. The form being natural versus one created for her by Usagi is one of the largest differences between the movie and the manga.
- Never Say "Die": In the Canadian dub, Sailor Moon says "death" while confronting Kaguya. Later on she plans to beat her with the Silver Crystal, the power of which will invariably cause her death. Sailor Venus calls her out on this, and Uranus resolves to prevent it.
- No Sympathy: None of the girls save Minako particularly care about how Artemis might feel about Luna falling in love with someone since he technically is Luna's partner and boyfriend. Hell, even Minako chastised him for taking Luna for granted in the manga.
- Oh, Crap!: Kaguya's reaction when the Sailor Guardians use the Silver Crystal to kill her is of utter shock.
- Punch! Punch! Punch! Uh Oh...: It takes the Sailor Guardians a while before they realize that their attacks on the Snow Dancers in Tokyo accomplished nothing, as they automatically regenerate.
- Shout-Out: The film is loosely based on, you guessed it, Hans Christian Andersen's The Snow Queen.
- Surprise Santa Encounter: Sailor Moon encounters with Tuxedo Mask disguised as Santa during her battle with the Snow Dancers. It gets weird to think about when one realizes it's the middle of summer when the movie takes place the villains' snow-based powers notwithstanding, and one has to wonder where the hell Mamoru managed to get the stuff from in the middle of summer break.