At the start of the film, two characters mention going to see a new film with Jean Marais. The film was most likely Orphée (1950), which was released in Japan in June 1951.
At the 30-minute mark, the baseball team the women are watching at bat is the Mainichi Orions, as evidenced by the announcements of left fielder Takuzo Miyake and center fielder Kaoru Betto. The Orions were the defending Japan Series champions in 1951, but finished third in the Japanese Pacific League with a 54-51 record despite Betto hitting .309 with 16 home runs and 22 stolen bases, and Miyake batting .281. The franchise still exists as of 2020 as the Chiba Lotte Marines.
At the spa, the women mention the All-Girl Revue and sing a song from it ("It started when the violets were in bloom..."). This is most likely a reference to the Takarazuka Revue, an all-female musical theatre troupe based in Takarazuka, in the Hyogo Prefecture.
Underwent a digital restoration in 2017 by Imagica, under the supervision of frequent Yasujirô Ozu collaborator Shizuo Yamanouchi.
This film is part of the Criterion Collection, spine #989.