
The Super Mario Bros. Movie is almost here, and a big spoiler about Princess Peach may have been accidentally revealed. If the leak is true, it confirms a fan theory that people have been discussing for almost 20 years, and surprisingly, the information came from the UK’s organization that rates movies for age appropriateness.
The new movie has been rated PG by the British Board of Film Classification. This means it’s suitable for most viewers, but parents should be aware there might be some content that’s too intense or scary for very young or sensitive children.
The Super Mario games are usually safe for kids, but the newest adventure includes some gentle violence and scary moments as Mario, Luigi, Yoshi, Princess Peach, and Toad travel to space to battle Bowser and his son.
However, if you look at the ‘more info’ section of the listing and scroll down to ‘theme,’ you’ll find this description: ‘There are brief, mild scenes that might be upsetting, such as flashbacks of a girl being separated from her younger sister.’
The Super Mario Galaxy Movie age rating may feature Princess Peach spoiler

While not officially confirmed, many fans think a recent hint about a sisterly separation refers to Princess Peach and Rosalina. This idea has been circulating since the 2007 release of Super Mario Galaxy.
Beyond looking alike and clues from the games, the movie The Super Mario Bros. Movie (2023) suggested a connection: Peach tells Mario she isn’t originally from the Mushroom Kingdom and doesn’t know where she really comes from.
A brief scene from the past reveals a young Peach arriving in the Mushroom Kingdom, dressed in clothing decorated with stars and moons. This suggests a possible connection between her and the cosmic realm of Rosalina and the Lumas.
Ever since Rosalina appeared in The Super Mario Galaxy Movie, fans have wondered if she and Princess Peach are long-lost sisters. A recent detail in the film seems to strongly suggest that theory is true.

Someone shared a quote from the UK game rating system on Reddit, and another user responded that they’d love it if Peach and Rosalina were established as sisters, as their daughter has wished for that storyline since she was a child.
Someone else wondered who the younger sister was, guessing it was Peach. They felt Rosalina seemed more like an older sister due to her caring nature.
Someone else commented that they’ve always expected Rosalina and Peach to have this kind of relationship, and expressed hope that it turns out to be true.
Some fans are disappointed, with one expressing hope for a different connection between the characters. They wrote, “I was really hoping they’d be portrayed as mother and daughter.”
Someone else agreed, sharing that they’d long believed this to be true within the game’s story. They liked the idea that the storybook reveals events from a past universe, potentially featuring earlier incarnations of Mario and Peach as Rosalina’s parents.
Someone else commented, saying they were interested, but if the rumor about Peach and Rosalina being involved was true, revealing it like this would be a disappointing way to do it.
Rosalina theory sparks debate over Mario movie canon

Many fans have also noted that the Mario games and movies seem to take place in different universes. They caution that even if something is shown in the movie, it doesn’t automatically mean it’s part of the games’ established story.
One commenter praised the movie’s approach to Rosalina’s backstory, saying it neatly explains her origins and connects her to the other characters, effectively answering a question raised by the first film about Peach’s background.
It allows the filmmakers to evoke emotion from the audience without introducing story elements that don’t fit the movie’s narrative.
My biggest concern is that this will lead a lot of people to mistakenly believe that Peach and Rosalina are sisters in the games, which isn’t true at all.
One person expressed concern that even if the movie doesn’t alter Rosalina’s official backstory, most people will likely remember her based on her portrayal in the film. They believe Nintendo will then heavily associate Rosalina with Princess Peach in future games and promotions.
If Rosalina is primarily seen as just ‘Peach’s sister,’ it will limit her development as a unique character with her own story and possibilities. This will make it much harder to explore her character independently in the future.
While the movies exist separately, their popularity will inevitably influence how the games are marketed and developed. A clear example of this was the recent Princess Peach Showtime game, where the box art featured Peach designed to match her appearance in the movie.
One commenter pointed out that viewers who expect the movie to perfectly match the game’s story might be upset, as the film and games have different continuities and can take different creative paths.
The Super Mario Galaxy Movie will be released in theaters on April 1, 2026. While you wait, check out our list of the best video game movies ever made and see what other films are scheduled for release in 2026.
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2026-03-25 14:21