The Fandom Post is reporting that Shout! Factory has added the Liz and the Blue Bird anime film to Amazon Prime Video. Members can watch the film for free, but you can rent the film for $3.99 or buy it for $12.99. The film is available in both subtitled and dubbed versions.
The story of Liz and the Blue Bird is described as:
The film focuses on flutist Nozomi Kasaki and oboist Mizore Yoroizuka, the characters that were also the focus of the Sound! Euphonium 2 anime’s first half. Both Nozomi and Mizore are in their final year of high school, and Nozomi has rejoined the band. The band’s new competition piece, “Liz and the Blue Bird,” has a flute and oboe duet, which requires both Nozomi and Mizore to be coordinated. But while both have been together since middle school, Mizore is uneasy at the thought of being separated from Nozomi once more at the end of the year, which begins to affect not just their music, but their relationship.
Source: The Fandom Post