Question: What role was played by Carrie Fisher, in the 1977 American space opera film written and directed by George Lucas and which features Peter Mayhew, an English-American actor?
Context: Star Wars: Episode III – Revenge of the Sith is a 2005 American epic space opera film written and directed by George Lucas.  It is the sixth entry of the "Star Wars" film series and stars Ewan McGregor, Natalie Portman, Hayden Christensen, Ian McDiarmid, Samuel L. Jackson, Christopher Lee, Anthony Daniels, Kenny Baker, and Frank Oz.  A sequel to "" (1999) and "" (2002), the film is the third and final installment of the "Star Wars" prequel trilogy. Peter Mayhew (born 19 May 1944) is an English-American actor who is best known for playing Chewbacca in the "Star Wars" film series. The Empire Strikes Back (also known as Star Wars: Episode V – The Empire Strikes Back) is a 1980 American epic space opera film directed by Irvin Kershner.  Leigh Brackett and Lawrence Kasdan wrote the screenplay, with George Lucas writing the film's story and serving as executive producer.  The second installment in the original "Star Wars" trilogy, it was produced by Gary Kurtz for Lucasfilm and stars Mark Hamill, Harrison Ford, Carrie Fisher, Billy Dee Williams, Anthony Daniels, David Prowse, Kenny Baker, Peter Mayhew, and Frank Oz. Star Wars: The Force Awakens (also known as Star Wars: Episode VII – The Force Awakens) is a 2015 American epic space opera film co-written, co-produced and directed by J. J. Abrams.  The sequel to 1983's "Return of the Jedi", "The Force Awakens" is the first installment of the "Star Wars" sequel trilogy.  It stars Harrison Ford, Mark Hamill, Carrie Fisher, Adam Driver, Daisy Ridley, John Boyega, Oscar Isaac, Lupita Nyong'o, Andy Serkis, Domhnall Gleeson, Anthony Daniels, Peter Mayhew, and Max von Sydow.  Produced by Lucasfilm Ltd. and Abrams' production company Bad Robot Productions and distributed worldwide by Walt Disney Studios Motion Pictures, "The Force Awakens" was the first "Star Wars" film not produced by franchise creator George Lucas.  Set 30 years after "Return of the Jedi", it follows Rey, Finn and Poe Dameron's search for Luke Skywalker and their fight alongside the Resistance, led by veterans of the Rebel Alliance, against Kylo Ren and the First Order, a successor to the Galactic Empire. Star Wars: The Last Jedi (also known as Star Wars: Episode VIII – The Last Jedi) is an upcoming American epic space opera film written and directed by Rian Johnson.  It is the second film in the "Star Wars" sequel trilogy, following "" (2015).  The film is produced by Lucasfilm and will be distributed by Walt Disney Studios Motion Pictures.  It stars Mark Hamill, Carrie Fisher, Adam Driver, Daisy Ridley, John Boyega, Oscar Isaac, Lupita Nyong'o, Domhnall Gleeson, Anthony Daniels, Gwendoline Christie, and Andy Serkis in returning roles.  New cast members include Benicio del Toro, Laura Dern, and Kelly Marie Tran.  Fisher died in December 2016, making "The Last Jedi" her final film role. The "Star Wars" sequel trilogy is the third film trilogy in the "Star Wars" American space opera franchise, created by George Lucas.  It is being produced by Lucasfilm and distributed by Walt Disney Studios Motion Pictures.  The trilogy is to consist of episodes "VII" through "IX" and chronologically follows "Return of the Jedi" (1983) in the saga.  Lucas originally planned a sequel trilogy in the mid-1970s, but had abandoned these plans by the late 1990s.  The Walt Disney Company acquired Lucasfilm in late 2012 and then announced the production of a sequel trilogy. Return of the Jedi (also known as Star Wars: Episode VI – Return of the Jedi) is a 1983 American epic space opera film directed by Richard Marquand.  The screenplay by Lawrence Kasdan and George Lucas was from a story by Lucas, who was also the executive producer.  It was the third installment in the original "Star Wars" trilogy and the first film to use THX technology.  The film is set one year after "The Empire Strikes Back" and was produced by Howard Kazanjian for Lucasfilm Ltd.  The film stars Mark Hamill, Harrison Ford, Carrie Fisher, Billy Dee Williams, Anthony Daniels, David Prowse, Kenny Baker, Peter Mayhew and Frank Oz. Star Wars: Episode II – Attack of the Clones is a 2002 American epic space opera film directed by George Lucas and written by Lucas and Jonathan Hales.  It is the second installment of the "Star Wars" prequel trilogy, and stars Ewan McGregor, Natalie Portman, Hayden Christensen, Ian McDiarmid, Samuel L. Jackson, Christopher Lee, Temuera Morrison, Anthony Daniels, Kenny Baker and Frank Oz. Star Wars: Episode I – The Phantom Menace is a 1999 American epic space opera film written and directed by George Lucas, produced by Lucasfilm and distributed by 20th Century Fox.  It is the first installment in the "Star Wars" prequel trilogy and stars Liam Neeson, Ewan McGregor, Natalie Portman, Jake Lloyd, Ian McDiarmid, Anthony Daniels, Kenny Baker, Ahmed Best, Pernilla August, Brian Blessed, Ray Park, and Frank Oz. Star Wars (later retitled Star Wars: Episode IV – A New Hope) is a 1977 American epic space opera film written and directed by George Lucas.  It is the first film in the original "Star Wars" trilogy, the first "Star Wars" movie in general, and the beginning of the "Star Wars" franchise.  Starring Mark Hamill, Harrison Ford, Carrie Fisher, Peter Cushing, Alec Guinness, David Prowse, James Earl Jones, Anthony Daniels, Kenny Baker, and Peter Mayhew, the film's plot focuses on the Rebel Alliance, led by Princess Leia (Fisher), and its attempt to destroy the Galactic Empire's space station, the Death Star.  This conflict disrupts the isolated life of farmhand Luke Skywalker (Hamill), who inadvertently acquires a pair of droids that possess stolen architectural plans for the Death Star.  When the Empire begins a destructive search for the missing droids, Skywalker accompanies Jedi Master Obi-Wan Kenobi (Guinness) on a mission to return the plans to the Rebel Alliance and rescue Leia from her imprisonment by the Empire.
Answer: Princess Leia