Nicole Kidman and Charlize Theron are set to star in a movie together as a married couple! Kidman will star in and produce The Danish Girl, based on a 2000 best-selling novel about real-life husband and wife Danish artists, Einar and Greta Wegener. In the ’20s, the male Einar (to be played by Kidman) posed as a woman for his painter wife Greta (to be played by Theron). The finished portraits became all the rage in Copenhagen, which prompted Greta to encourage Einar to dress as a woman. By 1931, however, the husband took his role another step and underwent a landmark sex-change operation that had repercussions not only in their home but also around the world.