It's a Summer Film! (2021)
Original title: サマーフィルムにのって
It's a Summer Film! is a 2021 Japanese-language comedy movie directed by Soushi Matsumoto, with a running time of 1h 38m. It stars Marika Ito, Daichi Kaneko and Yuumi Kawai.
Barefoot and her friends decide to make a samurai movie, gather a unique cast and staff for the production, and try to screen it at their school festival.