It seems like Disney are adding another princess to their list as Snow White is set to get a new sister.

Red Rose was one of the original Grimm Brothers' fairy tales, and while their story didn't include Snow White, producers at Disney have decided to make Rose a "companion piece," claims The Hollywood Reporter.

The story transposes Rose Red into the Snow White tale, making her a key player in the later part of the story.

When Snow White takes a bite from the infamous poisonous apple and falls into her sleeping death, her estranged sister, Rose Red, must go on a scary quest with the dwarves to find a way to break the curse and bring Snow White back to life.

We think this is going to be one kick-ass princess and we can't wait to see the trouble she gets into while trying to save her sister. Who said we're too old for a princess movie, anyway?