The upcoming Slam Dunk anime movie has been revealed to be titled The First Slam Dunk. A December 3 Japanese release date was also unveiled.

Additionally, a poster of Ryota Miyagi was released. 

The Slam Dunk manga by Takehiko Inoue was serialized from 1990 to 1996 in Weekly Shonen Jump and was collected into 31 tankoubon volumes. Takehiko drew an epilogue called Slam Dunk 10 Days Later on school blackboards in 2005, with the epilogue being reprinted in 2009. The anime series, directed by the late Nobutaka Nishizawa, ran from 1993 to 1996 with 101 episodes and had a different ending. There were also four anime films that were released from 1994 to 1995. 

The new movie is directed by Inoue with Yasuyuki Ebara (Kabaneri of the Iron Fortress) as character designer and animation director, Yukiko Ban (Yowamushi Pedal: Glory Line) as sub-character designer, Daiki Nakazawa (Pop in Q) as CG director, Shunsuke Nakamura (Babylon co-photography director) as photography director, Kazuo Ogura (Attack on Titan The Final Season) as art director, and Shiori Furosho (Hero Mask) as color designer. Toei Animation and Dandelion Animation Studio are the animation production companies.

Viz Media describes the manga as:

Hanamichi Sakuragi’s got no game with girls–none at all! It doesn’t help that he’s known for throwing down at a moment’s notice and always coming out on top. A hopeless bruiser, he’s been rejected by 50 girls in a row! All that changes when he meets the girl of his dreams, Haruko, and she’s actually not afraid of him! When she introduces him to the game of basketball, his life is changed forever…

Source: @movie_slamdunk (1), (2)