Back To The Future Part III, English full movie, Michael J. Fox, Christopher Lloyd, 1990.
On November 12, 1955, moments after witnessing Dr. Emmett Brown disappear in his DeLorean, Marty has learned that he was transported to 1885.[N 1] Marty and the 1955 Doc have received Doc's 1885 letter and use its information to find and repair the DeLorean so Marty can return to 1985. Although Doc's letter expresses his desire to remain in the Old West, Marty finds and photographs a tombstone with Doc's name, dated six days after the letter. The inscription states that Doc was shot in the back by Biff Tannen's great-grandfather, Buford "Mad Dog" Tannen, over a matter of eighty dollars.
Marty travels to September 2, 1885 to save Doc, arriving amidst a cavalry pursuit of Native Americans. When the DeLorean's fuel line is torn, Marty hides the car in a cave only to be chased by a bear and knocked out. Found by his Irish-born great-great-grandparents Seamus and Maggie McFly, he spends the night at their farm. The next morning, he arrives in Hill Valley and runs afoul of Buford and his gang. Buford attempts to lynch Marty, but Doc rescues him. Doc agrees to leave 1885 after seeing the photograph, but without gasoline, the DeLorean cannot reach it required 88 mph.
Doc proposes using a steam locomotive to push the DeLorean up to the required speed to return to 1985. While he and Marty inspect a rail spur, they spot a runaway horse-drawn wagon. Doc saves Clara Clayton, averting her death from the original timeline; they quickly fall in love. At a town festival, Buford tries shooting Doc, but Marty thwarts him. Buford then challenges Marty to a showdown in two days; an angry Marty accepts. Doc warns Marty to avoid being provoked by name-calling and lets slip that Marty has a car accident in the future. Doc's name in the photograph is erased but the date and tombstone remain.
Doc arrives to bid Clara goodbye, but she spurns him, disbelieving his story about being from the future. Despondent, he goes to the saloon for a binge and passes out after one shot of whiskey. In the morning, Buford arrives and calls out Marty, who observes the photograph and sees "Clint Eastwood" (his 1885 alias) appear on the tombstone, so he refuses to duel Buford. Doc revives and tries fleeing with Marty, but Buford's gang forces Marty into the duel. Marty fools Buford into believing he fatally shot him, then knocks him into a wagon of manure. Buford is arrested for an earlier robbery.
On the train for San Francisco, Clara overhears a conversation about how heartbroken Doc is. Clara applies the emergency brake and walks back to Hill Valley. She discovers Doc's scale model of the time machine at his shop and, realizing he was telling the truth, rides after him. Using the stolen locomotive, Doc and Marty push the DeLorean along the spur line. Clara boards the locomotive while Doc climbs toward the DeLorean. Seeing Clara, Doc encourages her to reach him, but she falls, hanging by her dress. Marty, in the DeLorean, passes his hoverboard to Doc and he uses it to save Clara, coasting away as the locomotive falls off an unfinished railroad bridge and into a ravine.
Marty is transported to 1985, arriving on the now-completed bridge, and escapes from the powerless DeLorean just before it is destroyed by an oncoming freight train. The timeline has returned to normal and Marty reunites with Jennifer. Marty has learned to no longer be goaded and avoids a street race with Douglas J. Needles, thus preventing the future automobile accident Doc warned him about. Jennifer opens the fax message she kept from 2015 and watches as the text regarding Marty's dismissal from his job disappears.
As Marty and Jennifer examine the DeLorean wreckage, a steam locomotive equipped with a flux capacitor and operated by Doc, Clara, and their children Jules and Verne appears. Doc gives Marty a photo of them standing next to the town clock that was taken in 1885. Jennifer asks about the now-blank fax and Doc says it means that the future has not yet been written. Doc and his family say goodbye and depart in the locomotive, which lifts off the tracks before travelling to an unknown time.
Main article: List of Back to the Future characters
Michael J. Fox as Marty McFly / Seamus McFly
Christopher Lloyd as Emmett "Doc" Brown
Mary Steenburgen as Clara Clayton
Thomas F. Wilson as Buford "Mad Dog" Tannen / Biff Tannen
Lea Thompson as Maggie McFly / Lorraine Baines-McFly
James Tolkan as Marshal James Strickland
Matt Clark as Chester the Bartender
Elisabeth Shue as Jennifer Parker
Flea as Douglas J. Needles
One of the DeLorean vehicles used in the film
The origins of the western theme for Back to the Future Part III lie in the production of the original film. During filming for the original, director Zemeckis asked Michael J. Fox what time period he would like to see. Fox replied that he wanted to visit the Old West and meet cowboys. Zemeckis and writer/producer Bob Gale were intrigued by the idea, but held it off until Part III. Rather than use existing sets, the filmmakers built the 1885 Hill Valley from scratch. The western scenes were filmed on location in Oak Park, California, and Monument Valley. Some of the location shooting for the 1885 Hill Valley was done in Jamestown, California, and on a purpose-built set at the Red Hills Ranch near Sonora, California. Some of the train scenes were filmed at Railtown 1897 State Historic Park, a heritage line in Jamestown. Whereas the original film played to a more materialistic idea of success, Zemeckis considered Part III more of a "human journey" with spiritual overtones.
The shooting of the Back to the Future sequels, which were shot back-to-back throughout 1989, reunited much of the crew of the original. The films were shot over the course of 11 months, save for a three-week hiatus between filming of Parts II and III and concluded in January 1990. The most grueling part was editing Part II while filming Part III, and Zemeckis bore the brunt of the process over a three-week period. While Zemeckis was shooting most of the train sequences in Sonora, Gale was in Los Angeles supervising the final dub of Part II. Zemeckis would wrap photography and board a private plane to Burbank, where Gale and engineers would greet him on the dubbing stage with dinner. He would oversee the reels completed that day, and make changes where needed. Afterwards, he would retire to the Sheraton Universal Hotel for the night. The following morning, Zemeckis would drive to the Burbank Airport, board a flight back to the set in Northern California, and continue to shoot the film.
Although the schedule for most of the personnel involved was grueling, the actors found the remote location for Part III relaxing, compared to shooting its predecessor.
The role of Clara Clayton was written with Mary Steenburgen in mind. When she received the script, however, she was reluctant to commit to the film until her kids, who loved Part I, 'hounded' her. Lloyd shared his first on-screen kiss with Steenburgen in Part III. The Hill Valley Festival Dance scene proved to be the most dangerous for Lloyd and Steenburgen; overzealous dancing left Steenburgen with a torn ligament in her foot.
The film also starred veteran western film actors Pat Buttram, Harry Carey Jr., and Dub Taylor, as three "saloon old timers". The inclusion of these noticeable Western actors was promoted in several documentaries about the film as well as the behind-the-scenes documentary of the DVD and in the obituary of one of the actors. The musicians of the Old West–style band in the film were played by ZZ Top.
Shooting a film set in the Old West was appealing to the stuntmen, who were all experienced horse riders. "We had every great stuntman in Hollywood wanting to work on Part III," recalled Gale in 2002. Thomas F. Wilson, who played Buford Tannen, chose to perform his own stunts and spent a great deal of time learning to ride a horse and throw his lariat. Filming was halted when Fox's father died and when his son was born.
Alan Silvestri, through his longtime collaboration with Zemeckis, returned to compose the score for Back to the Future Part III. Rather than dictate how the music should sound, Zemeckis directed Silvestri as he would an actor, seeking to evoke emotion and treating every piece of music like a character.
The photography in Part III was a "dream" for cinematographer Dean Cundey, who agreed with much of the crew in his excitement to shoot a western. The filmmakers sought a bright, colorful picture for each scene, with a hint of sepia tone in certain shots. Zemeckis wished to create a spectacular climax to the film. He coordinated the actors, a live 4-6-0 ten wheeler steam locomotive, pyrotechnics, and special effects, and countless technicians all at once. As they had done with the previous two films in the trilogy, the visual effects for Part III were managed by effects company Industrial Light & Magic; the head of its animation department, Wes Takahashi, returned to once again animate the DeLorean's time travel sequences.