Question: Which American actress is known for her role as Rachel Lapp in the1985 American crime thriller film directed by Peter Weir?

Context paragraphs:
Kill the Messenger (2014 film): Kill the Messenger is a 2014 American crime thriller film directed by Michael Cuesta and written by Peter Landesman.  It is based on the book of the same name by Nick Schou and the book "Dark Alliance" by Gary Webb, which focuses on CIA involvement in Contra cocaine trafficking.  The film stars Jeremy Renner in his first film as a producer.  The film was released on October 10, 2014.

Kelly McGillis: Kelly Ann McGillis (born July 9, 1957) is an American actress.  She has found fame for her acting roles in several films since the 1980s including: her role as Rachel Lapp in "Witness" (1985) with Harrison Ford, for which she received Golden Globe and BAFTA nominations, the role of Charlie in the film industry's blockbuster hit "Top Gun" (1986) with Tom Cruise, and the role of attorney Kathryn Murphy in "The Accused" (1988), with Jodie Foster.

The Year of Living Dangerously (film): The Year of Living Dangerously is a 1982 Australian romantic, drama film directed by Peter Weir and co-written by Weir and David Williamson adapted from Christopher Koch's 1978 novel "The Year of Living Dangerously".  The story is about a love affair set in Indonesia during the overthrow of President Sukarno.  It follows a group of foreign correspondents in Jakarta on the eve of an attempted coup by the 30 September Movement in 1965.

Blood Ties (2013 film): Blood Ties is a 2013 Franco–American crime thriller film directed by Guillaume Canet.  It is a remake of 2008 French thriller "Les liens du sang" by Jacques Maillot, an adaptation of the French novel "Deux frères: flic & truand" by Bruno and Michel Papet.  The screenplay was written by Canet and James Gray and stars Clive Owen, Billy Crudup, Marion Cotillard, Mila Kunis and Matthias Schoenaerts.  The film was selected to be screened out of competition at the 2013 Cannes Film Festival.  It received a limited release on March 21, 2014 in the United States.

The Plumber (1979 film): The Plumber is a 1979 Australian psychological thriller film about a psychotic plumber who befriends a woman.  Written and directed by Peter Weir, "The Plumber" was originally made and broadcast as a television film in Australia in 1979 but was subsequently released to theaters in several countries beginning with the United States in 1981.  The film was made shortly after Weir's critically acclaimed "Picnic at Hanging Rock" became one of the first Australian films to appeal to an international audience.  The film stars Judy Morris, Ivar Kants, and Robert Coleby, all of them being most notable as actors in Australian soap operas.

The Last Wave: The Last Wave is a 1977 Australian mystery drama film directed by Peter Weir.  It is about a white solicitor in Sydney whose seemingly normal life is disrupted after he takes on a murder case and discovers that he shares a strange, mystical connection with the small group of local Australian Aborigines accused of the crime.

Witness (1985 film): Witness is a 1985 American crime thriller film directed by Peter Weir and starring Harrison Ford and Kelly McGillis.  The screenplay by William Kelley, Pamela Wallace, and Earl W. Wallace focuses on a detective protecting a young Amish boy who becomes a target after he witnesses a murder in Philadelphia.

Jim Sturgess: James Anthony Sturgess (born 16 May 1981) is an English actor and singer-songwriter.  His breakthrough role was appearing as Jude in the musical romance drama film "Across the Universe" (2007).  In 2008, he played the male lead role of Ben Campbell in "21".  In 2009, he played Gavin Kossef in the crime drama "Crossing Over", appearing with Harrison Ford, Ray Liotta and Ashley Judd.  In 2010, Sturgess starred in the film, "The Way Back", directed by Peter Weir.  Sturgess co-starred in the epic science fiction film "Cloud Atlas", which began filming in September 2011 and was released in October 2012.

The Way Back: The Way Back is a 2010 American survival drama film directed by Peter Weir, from a screenplay by Weir and Keith Clarke.  The film is inspired by "The Long Walk" (1956), the memoir by former Polish prisoner of war Sławomir Rawicz, who claimed to have escaped from a Soviet Gulag and walked 4,000 miles to freedom in World War II.  The film stars Jim Sturgess, Colin Farrell, Ed Harris, and Saoirse Ronan, with Alexandru Potocean, Sebastian Urzendowsky, Gustaf Skarsgård, Dragoş Bucur and Mark Strong.

Picnic at Hanging Rock (film): Picnic at Hanging Rock is a 1975 Australian mystery drama film directed by Peter Weir and starring Anne-Louise Lambert, Helen Morse, Rachel Roberts, Vivean Gray and Dominic Guard.  The film was adapted by Cliff Green from the 1967 novel of the same name by Joan Lindsay, who was deliberately ambiguous about whether the events really took place, although the story is in fact entirely fictitious.

Supporting paragraphs: Kelly McGillis Witness (1985 film)
Answer: Kelly Ann McGillis