History YMMV / BackToTheFuturePartIII

** Though [[FridgeLogic one wonders]] why they couldn't have dropped some hints that Buford already had a family. On the other hand, the filmmakers probably wanted to avoid the ethical ramifications of [[FridgeHorror having Buford's kids be left without a father]].

** Though [[FridgeLogic one wonders]] why they couldn't have dropped some hints that Buford already had a family.

* MoralEventHorizon: This trope caused a scene to be removed from the film. Originally, the movie was to have contained a scene where Buford Tannen, ancestor of Biff, shoots and kills Marshall Strickland in front of the lawman's son. According to screenwriter Bob Gale, the scene was removed because it was felt that after Buford is seen committing such a deed, [[KarmaHoudini it doesn't seem right that he not die]] (and he ''can't'' die, seeing as he will need to live long enough to extend the family line).\\
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The scene made it into the novelization of the movie, however. And the Marshall's son grew up with a strong sense of discipline, and made sure it got instilled in all his kids. So Buford just made life hell for all his descendants in general, and Biff in particular.

* SoCoolItsAwesome: Even people who hate the sequels will admit that [[spoiler:Doc's '''FLYING, TIME-TRAVELING TRAIN''']] is too cool for words.

** In the scene where 1955 Doc doesn't recognize the name Creator/ClintEastwood, a poster for ''Film/RevengeOfTheCreature'' (Eastwood's first screen appearance which was released that year) can be seen in the background.

* [[Series/KamenRiderDenO A time traveling train, you say?]]

* AwardSnub: The only film in the series not to be entered into the Academy Awards.

* {{Glurge}}: [[spoiler:Doc]]'s line at the end about how our futures haven't been written yet, and we should "make it a good one." Thank goodness it's followed immediately by [[spoiler: the '''[[SoCoolItsAwesome FLYING, TIME-TRAVELING TRAIN]]''']]!!
* HilariousInHindsight: Towards the end of the film, Seamus muses about [[VideoGame/TeamFortress2 trading a gun for a new hat]]. Needless to say, the clip can be found on Website/YouTube with the title "[[http://www.youtube.com/watch?v=lDwp4YySw0o Team Fortress 2 in a Nutshell]]".

* MoralEventHorizon: This trope caused a scene to be removed from the film. Originally, the movie was to have contained a scene where Buford Tannen, ancestor of Biff, shoots and kills Marshall Strickland in front of the lawman's son. According to screenwriter Bob Gale, the scene was removed because it was felt that after Buford is seen committing such a deed, [[KarmaHoudini it doesn't seem right that he not die]] (and he ''can't'' die, seeing as he will need to live long enough to extend the family line).
** The scene made it into the novelization of the movie, however. And the Marshall's son grew up with a strong sense of discipline, and made sure it got instilled in all his kids. So Buford just made life hell for all his descendants in general, and Biff in particular.
** It's also referenced and possibly canonised in the Creator/TelltaleGames sequel.

** Marty uses a Frisbie pie tin like a Frisbee. This actually is how the toy was invented and got that name.

* TheScrappy: Clara, for creating a RomanticPlotTumor. Although her CharacterizationMarchesOn in the [[WesternAnimation/BackToTheFuture animated series]].

** It's also referenced and possibly canonised in the TelltaleGames sequel.

* RelationshipSue: Clara, to her detractors. Who would believe a woman in her 30s and a man in his 60s could fall instantly in love? Clara's main purpose is to be Doc's love interest and drive his decisions, thus influencing the outcome of the plot.

* BigLippedAlligatorMoment: The DeLorean being pulled by horses. As the Doc points out, horses won't go much faster than 35-40 miles per hour in optimal situations, but yet the movie seems content to show them attempt it rather than immediately dismiss it, as they do with the steep slope and ice physics later on.
** They had to recover it from the cave where is was (barely) hidden. They probably figured they might as well clock the maximum speed while doing so.

** After being sent to 1885, Doc mentioned that he was unable to repair the time machine because "suitable replacement parts wouldn't be invented until 1947"; 1947 is the year when the transistor was invented.
** When the Colt salesman tries to get Marty to shoot the Peacemaker, he forces it into his left-hand (causing the first shot to miss completely, being Marty's weak hand). The Colt Single Action Army was actually originally designed to be fired left-handed while riding a horse.

-->'''Marty''': Well, Doc, now we know who Clara is.
-->'''Doc''': Marty, it's impossible. The idea that I could fall in LoveAtFirstSight? It's romantic nonsense. There's no scientific rationale to that!
-->'''Marty''': [''laughing''] C'mon, Doc, it's not science. You meet the right girl, it just hits ya; [[CallBack it's like lightning]].
* TheyChangedItNowItSucks: While still a FishOutOfTemporalWater comedy, the fact it incorporates the Western genre heavily made it the OddballInTheSeries.

* AssPull: So, despite the fact that Doc needs a massive contraption just to synthesize an ice cube, [[spoiler: he's able to create a flying, time traveling train?]]

* AssPull: So, despite the fact that Doc needs a massive contraption just ti synthesize an ice cube, [[spoiler: he's able to create a flying, time traveling train?]]

-->'''Doc''': Marty, it's impossible. The idea that I could fall in LoveAtFirstSight? It's romantic nonsense. There's no scientific rationale to that.
-->'''Marty''': (Laughing) C'mon, Doc, it's not science. You meet the right girl, it just hits ya; [[CallBack it's like lightning]].

* GeniusBonus: When the Colt salesman tries to get Marty to shoot the Peacemaker, he forces it into his left-hand (causing the first shot to miss completely, being Marty's weak hand). The Colt Single Action Army was actually originally designed to be fired left-handed while riding a horse.