The animated film "Once Upon a Time, 1957," an adaptation of Hans Christian Andersen's "The Snow Queen," does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses on traditional fairy tale elements and character relationships without any explicit or implicit queer representation.

The 1957 Soviet animated film "Once Upon a Time" is a children's fairy tale. Its narrative centers on a boy and his dog, exploring themes typical of children's animation from that era. The film does not feature any identifiable transgender characters or themes within its plot or character arcs.

The animated film features female characters such as Gerda, the Snow Queen, and the Robber Girl. While some characters possess magical abilities or assertive personalities, none are depicted engaging in or winning direct physical combat against one or more male opponents using skill, strength, or melee weapons.

The film is an adaptation of the Russian folk tale "The Little Humpbacked Horse." All major characters, such as Ivan the Fool, the Little Humpbacked Horse, and the Tsar-Maiden, retain their canonically established genders from the source material.

The film is an original animated production from 1957, not an adaptation of existing material with pre-established character races or a biopic of historical figures. Its characters are original to the film, thus precluding any race swaps.

Not depicted in the film.