In addition to the previously-announced “light novel” adaptation penned by Masatoshi Kusakabe for the JUMP jBOOKS line, the forthcoming Dragon Ball Super: Broly theatrical film will also receive a separate novelization from Shueisha Mirai Bunko authored by Kei Ogawa.
The 228-page book will retail for ¥700 + tax and will release 14 December 2018 alongside the film as well as the light novel version. The novelization is available for pre-order on Amazon Japan.
My Hero Academia‘s recent film also received separate novelizations, with Ogawa similarly behind the Mirai Bunko version; these versions are geared toward younger readers, with furigana accompanying all kanji.