Despite plenty of cameos in The Super Mario Galaxy Movie, an Avengers-style Super Smash Bros. film isn't likely right now
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Despite https://www.eurogamer.net/glen-powel-voicing-fox-mccloud-starfox-in-super-mario-galaxy-movie">crossover characters such as Fox McCloud appearing in https://www.eurogamer.net/movies/the-super-mario-galaxy-movie-2026">The Super Mario Galaxy Movie, that doesn't mean we should expect something akin to a Super Smash Bros. film any time soon.