Ghostbusters is a 1984 American supernatural comedy film directed and produced by Ivan Reitman and written by Dan Aykroyd and Harold Ramis.
 The film stars Bill Murray, Aykroyd and Ramis as eccentric parapsychologists who start a ghost-catching business in New York City.
 Sigourney Weaver and Rick Moranis co-star as a client and her neighbor, and Ernie Hudson as the Ghostbusters' first recruit.
Meatballs is a 1979 Canadian comedy film directed by Ivan Reitman.
 It is noted for Bill Murray's first film appearance in a starring role and for launching the directing career of Reitman whose later comedies included "Stripes" (1981) and "Ghostbusters" (1984), both starring Murray.
 The film also introduced child actor Chris Makepeace in the role of Rudy Gerner.
 It was followed by several sequels, of which only "" (1986) had any connection to the original.
Dave is a 1993 American political comedy film directed by Ivan Reitman, written by Gary Ross, and starring Kevin Kline and Sigourney Weaver.
 Frank Langella, Kevin Dunn, Ving Rhames, and Ben Kingsley appear in supporting roles.
Ghostbusters II is a 1989 American supernatural comedy film directed and produced by Ivan Reitman, written by Dan Aykroyd and Harold Ramis and starring Bill Murray, Aykroyd, Sigourney Weaver, Ramis, Ernie Hudson and Rick Moranis.
 It is the sequel to the 1984 film "Ghostbusters", and follows the further adventures of the three parapsychologists and their organization which combats paranormal activities.
Memoirs of an Invisible Man is a 1992 American comedy science fiction film directed by John Carpenter and released by Warner Bros., with many scenes taking place in and around San Francisco.
 The film is loosely based on "Memoirs of an Invisible Man", a 1987 novel by H.F. Saint.
 According to William Goldman's book "Which Lie Did I Tell?
", the film was initially developed for director Ivan Reitman; however, this version never came to fruition, due to disagreements between Reitman and Chevy Chase.
 The director deviated from his usual practice of titling the film as "John Carpenter's" because he knew that Warner Brothers would not allow him full artistic control, saying that the studio "is in the business of making audience-friendly, non-challenging movies."
Legal Eagles is a 1986 American legal crime comedy film directed by Ivan Reitman, written by Jim Cash and Jack Epps, Jr. from a story by Reitman and the screenwriters, and starring Robert Redford, Debra Winger, and Daryl Hannah.
Susan Alexandra Weaver (born October 8, 1949), known professionally as Sigourney Weaver, is an American actress and film producer.
 Following her film debut as a minor character in "Annie Hall" (1977), she quickly came to prominence with her first lead role as Ellen Ripley in "Alien" (1979).
 She reprised the role in three sequels: "Aliens" (1986), for which she was nominated for the Academy Award for Best Actress; "Alien 3" (1992), and "Alien Resurrection" (1997).
 She is also known for her starring roles in the box-office hits "Ghostbusters" (1984), "Ghostbusters II" (1989), and "Avatar" (2009).
Heartbreakers is a 2001 caper-romantic comedy film directed by David Mirkin.
 It stars Sigourney Weaver, Jennifer Love Hewitt, Ray Liotta, Jason Lee, and Gene Hackman.
 Weaver was nominated for a Golden Satellite Award for her performance in the film.
 The plot revolves around an elaborate con set up by a mother-daughter team to swindle wealthy men out of their money, and what happens during their "last" con together.
James Cameron is a Canadian director, screenwriter, and producer who has had an extensive career in film and television.
 Cameron's debut was the 1978 science fiction short "Xenogenesis", which he directed, wrote and produced.
 In the early part of his career, he did various technical jobs such as special visual effects producer, set dresser assistant, matte artist, and photographer.
 His feature directorial debut was the 1981 release "".
 The next film he directed was the science fiction action thriller "The Terminator" (1984).
 It starred Arnold Schwarzenegger as the titular cyborg assassin, and was Cameron's breakthrough feature.
 In 1986, he directed and wrote the science fiction action sequel "Aliens" starring Sigourney Weaver.
 He followed this by directing another science fiction film "The Abyss" (1989).
 In 1991, Cameron directed the sequel to "The Terminator", "" (with Schwarzenegger reprising his role), and also executive produced the action crime film "Point Break".
 Three years later he directed a third Schwarzenegger-starring action film "True Lies" (1994).
Red Lights is a 2012 Spanish-American thriller film written and directed by Rodrigo Cortés and starring Cillian Murphy, Sigourney Weaver, Robert De Niro, Toby Jones, Elizabeth Olsen, Joely Richardson and Leonardo Sbaraglia.
 The plot focuses on a physicist (Murphy) and a university psychology professor (Weaver), both of whom specialise in debunking supernatural phenomena, and their attempt at discrediting a renowned psychic (De Niro) whose greatest critic mysteriously died 30 years prior.

Question: Sigourney weaver starred in what 1984 American supernatural comedy film that was directed and produced by Ivan Reitman?
Answer: Ghostbusters