Question: The documentary "Empire of Dreams" talks about the original Star Wars movies, one of which was the first film to use what type of technology?

full_context: Document 1: Lawrence Kasdan: Lawrence Edward Kasdan (born January 14, 1949) is an American screenwriter, director and producer. He is best known as co-writer of the films "The Empire Strikes Back", "Raiders of the Lost Ark", and "Return of the Jedi". Kasdan co-wrote the "Star Wars" sequel trilogy film "", and will co-write the series' Han Solo spin-off film.
Document 2: Star Wars: Episode I – The Phantom Menace: 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.
Document 3: The Empire Strikes Back: 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.
Document 4: Star Wars: Episode III – Revenge of the Sith: 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.
Document 5: Star Wars: The Force Awakens: 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.
Document 6: Super Star Wars: The Empire Strikes Back: Super Star Wars: The Empire Strikes Back is a 1993 run and gun game for the Super Nintendo Entertainment System. It is the second game in the "Super Star Wars" trilogy and is based on the 1980 film "The Empire Strikes Back". The original Super NES game was released on 1993. The game was followed by a sequel based on the next film in the "Star Wars" series, "". "Super Star Wars: The Empire Strikes Back" was re-released on the Virtual Console in North America on August 24, 2009 and in the PAL regions on October 2, 2009, alongside the other games in the "Super Star Wars" series. The game is renown for its high difficulty.
Document 7: List of Star Wars species (F–J): This is a list of "Star Wars" species, containing the names of fictional sentient species from the "Star Wars" franchise beginning with the letters F through J. "Star Wars" is an American epic space opera film series created by George Lucas. The first film in the series, "Star Wars", was released on May 25, 1977 and became a worldwide pop culture phenomenon, followed by five sequels and three prequels. Many species of alien creatures (often humanoid) are depicted.
Document 8: Star Wars (radio): An expanded radio dramatization of the original "Star Wars" trilogy was produced in 1981, 1983, and 1996. The first two radio series, based on "Star Wars" and "The Empire Strikes Back", were produced and broadcast by National Public Radio (NPR) as part of "NPR Playhouse". A dramatization of "Return of the Jedi" was produced by most of the same team and also broadcast on NPR.
Document 9: Star Wars (film): 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.
Document 10: Star Wars: The Last Jedi: 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.
Document 11: Empire of Dreams: Empire of Dreams: The Story of the Star Wars Trilogy is a 2004 documentary film directed by Kevin Burns and narrated by Robert Clotworthy. It documents the making of the original "Star Wars" trilogy: "Star Wars" (1977), "The Empire Strikes Back" (1980), and "Return of the Jedi" (1983) and their impact on popular culture.
Document 12: List of Star Wars species (K–O): This is a list of "Star Wars" species, containing the names of fictional sentient species from the "Star Wars" franchise beginning with the letters K through O. "Star Wars" is an American epic space opera film series created by George Lucas. The first film in the series, "Star Wars", was released on May 25, 1977 and became a worldwide pop culture phenomenon, followed by four sequels, four prequels, and two animated television shows. Many species of alien creatures (often humanoid) are depicted.
Document 13: Return of the Jedi: 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.
Document 14: Star Wars expanded universe: The "Star Wars" expanded universe (SWEU; formerly branded as Expanded Universe or EU) is a collective term for all "Star Wars" fictional material produced by Lucasfilm or officially licensed by it. This expanded universe includes an array of derivative "Star Wars" works produced in conjunction with, between, and after the original trilogy (1977–1983) and prequel trilogy (1999–2005) of films, and includes books, comic books, video games, and television series. Intended as an enhancement to and extension of the "Star Wars" theatrical films produced by George Lucas, the continuity of all "Expanded Universe" material was tracked by Lucasfilm, and Lucas reserved the right to both draw on it and contradict it in his own works.
Document 15: The Story of Star Wars: The Story Of Star Wars is a 1977 record album presenting an abridged version of the events depicted in the film "Star Wars", using dialogue and sound effects from the original film. The recording was produced by George Lucas and Alan Livingston, and was narrated by Roscoe Lee Browne. The script was adapted by E. Jack Kaplan and Cheryl Gard.
ground_truth: THX technology