Nancy Archer is a fictional character from the 1958 science fiction film titled Attack of the 50 Foot Woman. In the movie, she is portrayed as a wealthy woman who undergoes a dramatic transformation after an encounter with an alien. This transformation causes her to grow to an enormous size, leading to chaos and destruction in her town. The film explores themes of isolation and empowerment, as Nancy grapples with her newfound abilities and the reactions of those around her. Attack of the 50 Foot Woman has since become a cult classic, often referenced in popular culture for its unique premise and campy style.