Development Producer Shōichi Hotta approached animation producer Ryoji Maru with a "big new" project, which included a film, after accepting an offer from
FuRyu in July 2018 to lead a sequel project for the
first season of Laid-Back Camp. In October 2018, the film was announced at the Yuru Camp Secret Society Blanket Enrollment Explanation Meeting event in
Saitama Prefecture. In April 2021, it was announced that
C-Station would return to produce the film from the series, with
Shochiku serving as the distributor.
Rie Takahashi, the
voice actress for
Ena Saitō in two seasons of the anime series, confirmed on her
Twitter account that the announcement of the film's release date on
April Fool's Day was "not a joke". Including in the announcement was a concept visual from a
storyboard drawn by director Yoshiaki Kyogoku, which shows a matured
Nadeshiko Kagamihara and
Rin Shima and a catchphrase saying,
Pre-production In April 2021, staff from two seasons of
Laid-Back Camp were confirmed to be returning for the film, including Kyogoku as the director, Jin Tanaka and Mutsumi Ito as scriptwriters, and Mutsumi Sasaki as the character designer. This is Kyogoku's first anime film that he has directed. In October 2021,
Yumiri Hanamori,
Nao Tōyama,
Sayuri Hara,
Aki Toyosaki, and Takahashi were announced to be reprising their respective voice roles from the anime series as Nadeshiko, Rin,
Chiaki Ōgaki,
Aoi Inuyama, and Ena.
Laid-Back Camp manga creator Afro hinted that the characters are a "little bit older" in the film. He also revealed that the script, settings, and other aspects of the film were created from scratch as Kyogoku and his team collaborated with him in every step of its production. He originally planned for them "to have a campsite on a slightly larger scale, or to have a campsite in a different location", but he ended up with the idea of "build[ing] a campsite" since "it was something that only adults could do". One of the campsites facilitated by was used as a filming location. According to Hanamori, the film takes place 10 years after the events of her character's high school years, while Kyogoku stated that her character's age is in the "mid-20s".
Post-production The logo of
Laid-Back Camp Movie was revealed in March 2022. In the same month, additional staff for the film were revealed, including Miho Imoto and Noriko Tsutsumiya as
prop designers, Yoshimi Umino as the
art director, Hiroaki Tanaka as the
cinematographer, and Takeshi Takadera as the
sound director. Kyogoku also described the film as a "stand-alone film", stating that it was "neither an extension nor an expansion of the TV series." In September 2022, Maru revealed that he made a
cameo appearance in the film. ==Music==