Rosalina voice actress Brie Larson is apparently pretty good at keeping secrets. The Marvel Cinematic Universe star filmed a video in May at the grand opening of Super Nintendo World in Orlando about getting to play the cosmic princess in The Super Mario Galaxy Movie.

Yesterday, we were graced with the first trailer for The Super Mario Galaxy Movie.

The first clip highlights Rosalina, voiced by Brie Larson, reading a story about Princess Peach to a group of Lumas.