EXCLUSIVE: Jessica Chastain and Kristen Wiig are circling the lead female roles opposite Matt Damon in The Martian, the film that Ridley Scott will next direct for Fox. Pic’s about an astronaut on Mars and his struggle to survive. These talks are early, and at this point, Chastain seems likelier than Wiig to be set for the film. Simon Kinberg, Scott and Aditya Sood are producing the pic, which Drew Goddard wrote based on an Andy Weir book.

CAA- and Mosaic-repped Chastain has heavy buzz going into Oscar season on The Disappearance Of Eleanor Rigby. Wiig next stars with her former Saturday Night Live castmate Bill Hader in The Skeleton Twins, which opens September 12. Wiig is repped by UTA and Naomi Odenkirk.