Alongside the announcement of Season 2 (which you can read about here) a Blue Lock movie has also been officially announced. If the cast remains the same in the movie as it was in the series, you can follow the link above to the article regarding the upcoming second season for a full cast list in English and Japanese.

Centring around Seishiro Nagi, the movie is based off the manga of the same name. The manga (so presumably the movie) follows Nagi’s life before he entered the Blue Lock facility.
A short, 15 second teaser was released, see below:
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