Sophie Fisher is a fictional character from the romantic comedy film Definitely, Maybe, released in 2008. She is portrayed by actress Rachel Weisz and is known for her charming personality and strong-willed nature. In the film, Sophie becomes a significant part of the protagonist's life as he navigates his past relationships. In the story, Sophie is a journalist who develops a deep connection with the main character, Will Hayes, played by Ryan Reynolds. Their relationship unfolds against the backdrop of Will's reflections on his romantic history, making Sophie a pivotal figure in his journey of self-discovery and love.