I haven't watched the movie, there was the one that has been launched last year. So, if this 2 in 2026 is a sequel then me and the others that haven't watched the first movie last year should be watched.
I am also a mario bothers fan since childhood I even use to have Nintendo in my elementary , from mario 1,2,3 is everything that i play
Even in the gameboy color, advance, etc. It was a huge franchise and one of the most successful.