Brie Larson to voice Rosalina in The Super Mario Galaxy Movie
Brie Larson is stepping into the Mushroom Kingdom, taking on the role of Rosalina—the spacefaring princess and adoptive mother to the Lumas—in The Super Mario Galaxy Movie. While Larson has long been associated with major IP via her turn as Captain Marvel in the MCU, she’s now set to join the galaxy-spanning adaptation alongside the film’s current stars, including Chris Pratt as Mario, Anya Taylor-Joy as Peach, Charlie Day as Luigi, Jack Black as Bowser, and Keegan-Michael Key as Toad.
In a recent sit-down with Fandango, Larson described the upcoming sequel as “bringing a lot of scope and potential to the films,” and she added that she’s proud because she knows “every detail” of the 2007 game that inspired the project, Super Mario Galaxy. It’s a claim that lines up with a long-running fan devotion she’s shared publicly.
Larson’s fandom for the source material isn’t new. A resurfaced YouTube clip from 2020 shows the actor discussing her deep love for gaming and, notably, an almost mythical moment when she admitted she once kicked out her boyfriend for suggesting she wasn’t taking playing Super Mario Galaxy seriously enough. She recalled beating the final level of the game and booting him from her home because of how seriously she was pursuing the challenge.
Despite the playful anecdotes, there’s no denying Larson’s alignment with the role. She has spoken about how the film’s design and references are carefully crafted for fans, including nods to the Honeyhive Galaxy. She described her reaction to the film’s Easter eggs as a mix of joy and astonishment, saying it felt like a “sensory overload” of all the elements she’s loved across games, movies, and cartoons.
Larson’s enthusiasm goes beyond fan service: she sees the film as expanding the stories the games began and weaving in new threads that connect familiar threads in surprising ways. She suggested that every frame is purposeful, with references that enrich the characters and lore already beloved by players.
The Super Mario Galaxy Movie is scheduled to hit theaters on April 1, 2026. Until then, fans can revisit the games, explore caps on the franchise’s releases, and keep an eye on upcoming updates as the cast and creative team bring Rosalina and the galaxy to life.