MountainA Productions is an independent, artist-led studio reinventing the relationship between talent, studio, and distributor.
We prioritize creators and collaborate with them through an innovative business model,
ensuring that everyone can truly participate and realize the value they bring to a project.
MountainA was co-founded by Natalie Portman and Sophie Mas.
MountainA has produced films,series and documentaries.
Its first film, May December, directed by Todd Haynes and starring Natalie Portman, Julianne Moore,and Charles Melton,was a commercial success.
Since then, MountainA has produced series and documentaries, including Arco, which premiered at the 2025 Cannes Film Festival.