Jennifer Lynn Connelly (born December 12, 1970) is an American actress who began her career as a child model. She appeared in magazine, newspaper, and television advertising, before she made her film acting debut in the crime film Once Upon a Time in America (1984). Connelly continued modeling and acting, starring in a number of films, including the horror film Phenomena (1985), the musical fantasy film Labyrinth (1986), the romantic comedy Career Opportunities (1991), and the period superhero film The Rocketeer (1991). She gained critical acclaim for her work in the science fiction film Dark City (1998) and for playing a drug addict in Darren Aronofsky's 2000 drama Requiem for a Dream.
At the 74th Academy Awards, Connelly won Best Supporting Actress for her portrayal of Alicia Nash in Ron Howard's biopic A Beautiful Mind (2001). Her subsequent credits include the Marvel superhero film Hulk (2003), in which she played Bruce Banner's love interest Betty Ross, the horror film Dark Water (2005), the drama Blood Diamond (2006), the science fiction film The Day the Earth Stood Still (2008), the romantic comedy He's Just Not That Into You, and the biopic Creation (both 2009). In the 2010s, she took on supporting roles in Aronofsky's epic film Noah (2014) and in the action film Alita: Battle Angel (2019). As of 2020, she stars in the TNT dystopian television series Snowpiercer.
Connelly was named Amnesty International Ambassador for Human Rights Education in 2005. She has been the face of Balenciaga and Louis Vuitton fashion advertisements, as well as for Revlon cosmetics. In 2012, she was named the first global face of the Shiseido Company. Magazines, including Time, Vanity Fair, and Esquire, as well as the Los Angeles Times newspaper, have included her on their lists of the world's most beautiful women.