Uma Musume Pretty Derby: Beginning of a New Era (movie)

The film's storyline is based on the career of racehorse Jungle Pocket (1998-2021), who won five of his 13 races from 2000 to 2002, as well as the Japanese Horse of the Year award in 2001.

The real Jungle Pocket was named after a children's song. The green and yellow colors of the racing silk worn by the jockeys during the horse's ownership by Yomoji Saito are referenced on the uma musume's racing costume.

Agnes Tachyon's racing costume features a yellow sweater and green test tubes; both of which reference the colors of the racing silk worn by the jockeys that raced with the real racehorse (1998-2009), who was undefeated in four races from 2000 to 2001 before a tendon injury ended his career.

Aoi Kiryuin and Riko Kashimoto, along with their respective trainees Happy Meek, Little Cocon, and Bitter Glasse from the Umamusume: Pretty Derby video game, make a cameo appearance among the crowd watching the Hopeful Stakes.

In real life, both Jungle Pocket and Fuji Kiseki (1992-2015) shared the same owner, trainer, and jockey. The real Fuji Kiseki was undefeated in four races from 1994 to 1995 before a tendon injury ended his career.

Trainer Tanabe is based on Sadao Watanabe, who trained both Jungle Pocket and Fuji Kiseki in real life.

In real life, Agnes Tachyon, Manhattan Cafe (1998-2015), and Fuji Kiseki were siblings through their sire (father) Sunday Silence (1986-2002).

The Uma Musume Pretty Derby logo for this film features a silhouette of Jungle Pocket.