I would cast Bob Hoskins as Mario, John Leguizamo as Luigi, and Dennis Hopper as King Bowser Koopa, because no one would ever use such a horrible cast for those parts, and I'd want to see it bomb.
... Wait a minute!
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Mario`s adventure is over for now, but,
Mario`s dream lives forever...
Dream on, Mario... dream on.
I'd make it computer animated!
The name''s Ike64...NintendoIke64.