The movie will be a musical comedy that retells the classic fairytale of Cinderella from the perspective of Anastasia and Drizella Tremaine, the golden-haired princess’ infamous evil stepsisters.
Wiig and Mumolo are currently in the process of co-writing the film, which is in early stages.
The project will be produced by Jessica Elbaum and Will Ferrell under the banner of Gloria Sanchez Productions.
It’s unclear whether or not the Oscar-nominated writers will also be acting in the movie, or if their roles will be exclusively behind the camera.