Sigourney Weaver is an American actress whose career spans decades. She first appeared as an extra in the film Annie Hall. Her breakthrough role was as Ripley in the 1979 film Alien. She reprised her role in the sequels Aliens, Alien 3, and Alien Resurrection. She also became known for her role as Dana Barrett in Ghostbusters and Ghostbusters II. In the 2000s, Weaver starred in the films The Village, Vantage Point, and Avatar, among others. In the 2010s, the actress starred in the movies The Cabin in the Woods, Exodus: Gods and Kings, Chappie, and A Monster Calls. She also starred in the miniseries Political Animals and The Defenders.