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
as Sarah Loreau
Matt Dillon
as Mike Shannon
Zélie Boulant-Lemesle
as Stella Akerman Loreau
Lars Eidinger
as Thomas Akerman
Sandra Hüller
as Wendy Hauer
Алексей Фатеев
as Anton Ochievski
Trond-Erik Vassal
as Jurgen
Nancy Tate
as Naomi Shannon
Grégoire Colin
as Sarah's Doctor
Игорь Филиппов
as Dima
Svetlana Nekhoroshikh
as Vera
Anna Sherbinina
as Russian Journalist
