The Super Mario Galaxy Movie revealed its first full trailer, introducing two new characters: Princess Rosalina and Bowser Jr. Nintendo and Universal confirmed that Brie Larson will voice Rosalina, while Benny Safdie will play Bowser Jr.
Both characters make their debut in this film. Bowser Jr. is on a quest to free his father, Bowser, who is imprisoned. Meanwhile, Rosalina watches over a family of Lumas in outer space and is shown fighting a robotic enemy in the trailer.
The Super Mario Galaxy Movie is set to premiere in theaters in April 2026. Fans can hear the voices of Larson and Safdie in full at that time. For more Nintendo updates, viewers are encouraged to watch "This Week in Switch 2."
"Brie Larson is an Academy Award-winning actress most known for her role as Captain Marvel in the Marvel Cinematic Universe. She’s also a well-documented Nintendo fan, and even appeared in a commercial for the Nintendo Switch."
"Benny Safdie is an actor-director hybrid who co-directed Uncut Gems, and appeared in blockbusters like Oppenheimer."
Donovan, a journalist from Maryland, recalls his earliest gaming memory as playing Pajama Sam on his mother’s desktop during weekends.
Summary: Brie Larson and Benny Safdie join The Super Mario Galaxy Movie as Princess Rosalina and Bowser Jr., bringing fresh faces and voices to Nintendo’s beloved universe in the April 2026 release.