Free!–the Final Stroke– the first volume

Free!–the Final Stroke– Zenpen (劇場版 Free!–the Final Stroke– 前編 Gekijou-ban Free!–the Final Stroke– Zenpen lit. Free!–the Final Stroke– the Movie First Part) is an animated film. produced by Kyoto Animation and ANIMATION DO. The film is the first in the Free!–the Final Stroke– pair and was released on September 17, 2021.

Overview
The movie is one of two in a pair that appear to be a continuation of the events of the Free! anime's third season, Free!-Dive to the Future-.

Zenpen's release date, along with the first teaser trailer, was revealed at the end of the Free! Series ORCHESTRA CONCERT 2020. The movie's title was revealed as part of the livestream held for the Free! series' eighth anniversary on April 26, 2021.

On June 25, 2021, it was announced that OLDCODEX, who have provided the opening themes for the anime as well as the ending theme for High☆Speed！－Free! Starting Days－, would be in charge of the theme song for Zenpen. On July 26, 2021, it was revealed alongside a new trailer for the movie that the new theme will be a remake of Heading to Over titled Heading to Over - Version:Free -. The single was scheduled to release on September 15, 2021.

Tatsuhisa Suzuki, the vocalist for OLDCODEX and the voice of Makoto Tachibana, announced that he would be taking a temporary hiatus from all singing and acting activities until further notice as of August 4, 2021, due to health concerns. As such, KyoAni announced on August 17, 2021, that the movie's theme song CD, Heading to Over - Version:Free -, would be postponed for the time being. A second notice was released on August 19, 2021, assuring fans of the series that due to Tatsuhisa's attachment to the series, his nuanced portrayal of Makoto, and his good relationship with the other cast members and the series' fans, he will not be replaced as the voice of Makoto for the movies.

In place of the remake of Heading to Over as the movie's theme song a new main theme was chosen, though no official announcement was made prior to the movie's theatrical release. The theme song for Zenpen is now We could be free.

Synopsis
"Haruka Nanase's new stage is Sydney, the place of his dreams that he once visited.

One day while taking a short break before his departure, Haru has a chance confrontation with a fellow athlete from the All-Japan Invitational.

Carrying all the feelings from those he's swam with in his heart, Haru takes his first step forward into a new world.

Waiting for him there is the unmistakable champion, Albert Volandel.

In the lead up to the Sydney tournament, all the competitors attempt to boost their morale.

What is each competitor feeling, and what do they swim for, as they attempt to compete at the top of the world?

Their passionate struggle against the water begins from here――！"

Main

 * Haruka Nanase (CV: Nobunaga Shimazaki (Japanese) )
 * Makoto Tachibana (CV: Tatsuhisa Suzuki (Japanese) )
 * Rin Matsuoka (CV: Mamoru Miyano (Japanese) )
 * Ikuya Kirishima (CV: Koki Uchiyama (Japanese) )
 * Asahi Shiina (CV: Toshiyuki Toyonaga (Japanese) )
 * Nagisa Hazuki (CV: Tsubasa Yonaga (Japanese) )
 * Rei Ryugazaki (CV: Daisuke Hirakawa (Japanese) )
 * Hiyori Tono (CV: Ryohei Kimura (Japanese) )
 * Sosuke Yamazaki (CV: Yoshimasa Hosoya (Japanese) )
 * Natsuya Kirishima (CV: Kenji Nojima (Japanese) )
 * Nao Serizawa (CV: Satoshi Hino (Japanese) )
 * Aiichiro Nitori (CV: Kouki Miyata (Japanese) )
 * Momotaro Mikoshiba (CV: Kenichi Suzumura (Japanese) )
 * Kisumi Shigino (CV: Chihiro Suzuki (Japanese) )
 * Gou Matsuoka (CV: Akeno Watanabe (Japanese) )
 * Romio Hayahune (CV: Atsushi Abe (Japanese) )
 * Shizuru Isurugi (CV: Yoshitsugu Matsuoka (Japanese) )
 * Ayumu Kunikida (CV: Ryo Hirohashi (Japanese) )
 * Ryuji Azuma (CV: Takeshi Kusao (Japanese) )
 * Mikhail Makarovich Nitori (CV: Hidenobu Kiuchi (Japanese) )
 * Albert Volandel (CV: Jeff Manning (Japanese) )
 * Kaede Kinjou (CV: Daisuke Ono (Japanese) )
 * Isuzu Mikoshiba (CV: Rina Satoh (Japanese) )
 * Takuya Uozumi (CV: Nobuyori Sagara (Japanese) )
 * Kazuki Minami (CV: Masayoshi Sugawara (Japanese) )

Production Staff
Studio: Kyoto Animation, Animation DO

Director: Eisaku Kawanami