Manga Start Date: Oct 25, 2022
Movie Release Date: Nov 11, 2022<br>
Yes. But the manga is an adaptation of the movie, not the other way around.
Per the official retailer, 1 currently. Although his other full movie manga adaptations have 3 volumes so it’s expected to be 2 more releasing 6 months a part.
You can buy the first one currently out yes and the others when they release, but only in Japanese atm. It hasn’t received an English publisher yet, but likely will.