House star Olivia Wilde is in discussions to join Daniel Craig in Cowboys & Aliens, a sci-fi Western that Jon Favreau is directing, according to The Hollywood Reporter. Wilde will play Ella, who joins Craig’s mysterious gunslinger in fighting an alien invasion. Craig recently took the role after Robert Downey Jr. dropped out. Alex Kurtzman and Roberto Orci co-wrote the script with Lost‘s Damon Lindelof.