https://wccftech.com/super-mario-movie-plot-leaked-songs/

What is the upcoming Super Mario movie going to be about? It’s been a question on Nintendo fans’ minds, particularly since the game’s slightly absurd cast, including Chris Pratt, Jack Black, and Seth Rogen, was revealed. Well, apparently test screenings for the Super Mario movie have taken place and some details have begun to leak out, which were then collected in a Reddit post. Insider Jeff Grubb has also gone on record, saying these details line up with what he’s heard.

The game is said to have a visual style similar to Hotel Transylvania, or perhaps other movies from Mario movie producers Illumination (Despicable Me, Sing). Mario and Luigi have Brooklyn accents similar to the old 80s/90s cartoon shows and have received a minor redesign. Mario, Luigi, Peach, Bowser, Toad, Toadette, Toadsworth, Captain Toad, Yoshi, Donkey Kong, Cranky Kong, Kamek, and Spike (Mario's old Wrecking Crew boss, not the later enemy) are said to be in the flick. In a nice touch, original Mario voice Charles Martinet will also act as the movie’s narrator.