Netflix film Spaceman.The film is set to adapt The Spaceman of Bohemia, a 2017 novel by Jaroslav Kalfar focusing on an astronaut embarking on a solo mission to space.Mulligan’s casting in the film, which is set to be helmed by Chernobyl director Johan Renck, was reported by Deadline. The screenplay was penned by Colby Day.Spaceman is set to follow “an astronaut (Sandler) sent to the edge of the galaxy to collect mysterious ancient dust.