Marvel is apparently finally heeding its fans? calls for a stand-alone Black Widow movie: The studio has taken a promising step by reportedly hiring a writer for the project. Jac Schaeffer has signed on to write the script, Variety reports. The Scarlett Johansson-starring project would be a very high-profile one for the writer. In writing the Black Widow script, Schaeffer will be tasked with dealing with one of the Marvel Cinematic Universe?s most popular superheroes. A concrete step such as Schaeffer?s hiring inspires optimism, but the project is still in early development and has yet to receive a green light, according to Variety.