The Current War is a historical drama film in which Katherine Waterston portrays Marguerite Westinghouse, the wife of George Westinghouse (played by Michael Shannon). The film tells the story of the rivalry between Thomas Edison (played by Benedict Cumberbatch) and George Westinghouse as they compete to determine whose electrical system will power the modern world. Waterston's character, Marguerite, provides support and insight to her husband during this intense battle of innovation. The Current War is a captivating film that explores the complexities of ambition, friendship, and the pursuit of progress.