Linguist Louise Banks is a fictional character from the 2016 science fiction film Arrival, directed by Denis Villeneuve. She is portrayed by actress Amy Adams and is a renowned expert in linguistics, tasked with communicating with extraterrestrial beings known as heptapods. Her work focuses on understanding their complex language and deciphering their intentions. In the film, Louise Banks faces challenges as she navigates the intricacies of language and time. Her character explores themes of communication, perception, and the impact of language on human experience. The story highlights her dedication to bridging the gap between humans and aliens through understanding and empathy.