Natalie Portman is reportedly in negotiations to replace Reese Witherspoon as the lead in Pale Blue Dot, a film about a successful female astronaut. Fox Searchlight will now look to find Portman's male co-star.

Witherspoon had left the role last November due to scheduling conflicts with season 2 of Big Little Lies. However, she will continue to produce the project with Bruna Papandrea. It will be directed by Fargo and Legion creator Noah Hawley.

Pale Blue Dot follows a successful female astronaut who, after coming back home from a mission in space, starts to unravel when confronted by her seemingly perfect American dream life. The film explores the theory that astronauts who spend long periods of time in space begin to lose their sense of reality when they return home.