Toei Animation / Dandelion Animation Studio just drop the first full trailer (embedded below) of The First Slam Dunk, an upcoming Japanese computer-animated sports film directed and written by Takehiko Inoue. The film is based on the Slam Dunk manga series written and illustrated by Inoue. The First Slam Dunk is scheduled to be released theatrically in Japan in December 2022. The 74-second video initially show two kids playing basketball in the play ground, then…