Sarah is a French astronaut training at the European Space Agency in Cologne. She is the only woman in the arduous program. She lives alone with Stella, her seven year old daughter. Sarah feels guilty that she cannot spend more time with her child. Her love is overpowering, unsettling. When Sarah is chosen to join the crew of a year-long space mission called Proxima, it creates chaos in the mother-daughter relationship.
Eva Green
Matt Dillon
Zélie Boulant-Lemesle
Lars Eidinger
Sandra Hüller
Alexey Fateev
Trond-Erik Vassal
Nancy Tate
Grégoire Colin
Igor Filippov
Svetlana Nekhoroshikh
Anna Sherbinina
Vitaly Jay
Lionel Ferra
Manuela Aguzzi
Alexis Nouhra
Raphaël Nouhra
Bastien François
Rémy François
Delcho Koprivshki
Thomas Pesquet