According to Marshall, the original idea of Number One was back in 2009 for a series that follows eight women leaders working in industry, politics, media, and sports. However, no TV Channel was interested. In 2017, she recovered the idea for a feature film. She reduced the number of characters and focused on just one women, Emmanuelle Blachey.[4]
For the film, Marshall researched the female corporative world through in-depth discussions.[2]
Synopsis
Emmanuelle Blachey (Emmanuelle Devos) is an ambitious corporate manager that aspires to become the first managing director of a major French company. However, she faces vicious sexism.[2]