MountainA

MountainA
TypePrivate
IndustryProduction company
FoundedSeptember 4, 2020; 6 years ago (2020-09-04)
Founders
Headquarters
United States
Key people
  • Natalie Portman (Partner)
  • Sophie Mas (Partner)

MountainA is an American film and television production company founded in September 2020 by Israeli-American actress and producer Natalie Portman and French producer Sophie Mas. It is known for producing the films May December (2023) and Arco (2025), and the television series Lady in the Lake (2024).

History

The company was founded on September 4, 2020, by Israeli-born American actress, producer, and director Natalie Portman and French producer and author Sophie Mas. The company gets its name from the Sisyphus myth, Portman and Mas' shared interest in mountains, and the "A" from the first letter of all of Portman and Mas' children's names.

In March 2021, the company entered a exclusive multi-year first look television production deal with Apple Inc.

Filmography

Film

Year Title Director Gross
(worldwide)		 Notes Ref.
2023 May December Todd Haynes $5.3 million with Gloria Sanchez Productions, Killer Films, Taylor & Dodge, and Project Infinity
2025 Arco Ugo Bienvenu $5.2 million with Remembers, France 3 Cinéma, Fit Via Vi Film Productions, and Sons of Rigor
2025 Carol & Joy Nathan Silver N/a Short film
with Dweck Productions
2026 The Gallerist Cathy Yan TBA with Concordia Studio, Slow Pony, and MRC

Upcoming

In development

Television

Year Title Network Notes Ref.
2023 Angel City HBO Max with Little Monster Films, O'Malley Creadon Productions, and HBO Sports Documentaries
2024 Lady in the Lake Apple TV+ with Bad Wolf America, Crazyrose, Zusa, and Fifth Season

References

  1. ↑ "MOUNTAINA, LLC :: OpenCorporates". OpenCorporates. September 4, 2020. Retrieved May 10, 2026.
  2. 1 2 Kroll, Justin (March 17, 2021). "Natalie Portman And Producing Partner Sophie Mas Sign Apple First-Look TV Deal". Deadline Hollywood. Retrieved May 10, 2026.
  3. ↑ Rankin, Seija (September 29, 2023). "Inside the Whirlwind 'May December' Production and Big Netflix Payout". The Hollywood Reporter. Retrieved May 10, 2026.
  4. ↑ Otterson, Joe (March 17, 2021). "Natalie Portman, Sophie Mas Ink First-Look TV Deal at Apple". Variety. Retrieved May 10, 2026.
  5. ↑ Kroll, Justin (June 11, 2021). "Natalie Portman And Julianne Moore To Star In Todd Haynes' 'May December' – Cannes Market". Deadline Hollywood. Retrieved May 10, 2026.
  6. ↑ Goodfellow, Melanie (May 13, 2024). "Natalie Portman Joins Voice Cast For Ugo Bienvenu's Rainbow Fantasy 'Arco' As Gebeka In'l Launches Sales In Cannes". Deadline Hollywood. Retrieved May 10, 2026.
  7. ↑ Carey, Matthew (August 25, 2025). "Natalie Portman Boards 'Carol & Joy' As EP; Documentary On Actress Carol Kane And Her 98-Year-Old Mother". Deadline Hollywood. Retrieved May 10, 2026.
  8. ↑ Kroll, Justin (October 29, 2024). "Natalie Portman And Jenna Ortega Circling 'The Gallerist' For Director Cathy Yan – The Dish". Deadline Hollywood. Retrieved May 10, 2026.
  9. ↑ Wiseman, Andreas (February 9, 2025). "Natalie Portman To Star In Rom-Com 'Good Sex' With Lena Dunham Writing & Directing; FilmNation & CAA Media Finance Launching For EFM". Deadline Hollywood. Retrieved May 10, 2026.
  10. ↑ Ritman, Alex (May 8, 2026). "Jonathan Bailey and Natalie Portman to Star in Thriller 'Pumping Black' for Anton (EXCLUSIVE)". Variety. Retrieved May 10, 2026.
  11. ↑ Tracy, Andrew (March 24, 2023). "Natalie Portman, "Free Solo" directors team for HBO soccer doc "Angel City"". RealScreen. Retrieved May 10, 2026.
  12. ↑ White, Peter (March 10, 2021). "Natalie Portman & Lupita Nyong'o To Star In 'Lady In The Lake' Series At Apple From Alma Har'el, Dre Ryan, Jean-Marc Vallée, Bad Wolf & Endeavor Content". Deadline Hollywood. Retrieved May 10, 2026.