In 2017, it was revealed that "Pretty Guardian Sailor Moon Crystal" anime's fourth season would continue as a two-part theatrical anime film project adapting the "Dream" arc from the manga (subtitled "Dead Moon"). On June 30, 2019, it was announced that the title of the films will be "Pretty Guardian Sailor Moon Eternal: The Movie". The first film was originally to be released on September 11, 2020, but was postponed and released on January 8, 2021, and the second film was released on February 11, 2021. Chiaki Kon returned from the anime's third season to direct the two films.