Just watched this series (LOTR) for the umpteenth time. 
Interesting trivia to understand how big a sacrifice Arwen made to be with Aragorn.
Arwin and Aragorn
https://en.m.wikipedia.org/wiki/Arwen
As told in "The Tale of Aragorn and Arwen",[1] Aragorn in his twentieth year met Arwen for the first time in Rivendell, where he lived under Elrond's protection. Arwen, then over 2700 years old, had recently returned to her father's home after living for a while with her grandmother Lady Galadriel in Lórien. Aragorn fell in love with Arwen at first sight. Some thirty years later, the two were reunited in Lórien. Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marry each other. In making that choice, Arwen gave up the Elvish immortality available to her as a daughter of Elrond and agreed to remain in Middle-earth instead of traveling to the Undying Lands.
Link that compares the LOTR movies to books:
lotr.fandom.com
I wanted to save my Return of the King synopsis from the movie thread:
Interesting trivia to understand how big a sacrifice Arwen made to be with Aragorn.
Arwin and Aragorn
https://en.m.wikipedia.org/wiki/Arwen
As told in "The Tale of Aragorn and Arwen",[1] Aragorn in his twentieth year met Arwen for the first time in Rivendell, where he lived under Elrond's protection. Arwen, then over 2700 years old, had recently returned to her father's home after living for a while with her grandmother Lady Galadriel in Lórien. Aragorn fell in love with Arwen at first sight. Some thirty years later, the two were reunited in Lórien. Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marry each other. In making that choice, Arwen gave up the Elvish immortality available to her as a daughter of Elrond and agreed to remain in Middle-earth instead of traveling to the Undying Lands.
Link that compares the LOTR movies to books:

Movie vs. Book: Fellowship of the Ring
The differences between J.R.R. Tolkien's book The Fellowship of the Ring and the Peter Jackson film screenplay of the same name are fairly easy to document because, in both the book and film, the story maintains a single thread from beginning to end. While there are some changes in sequence, the...
I wanted to save my Return of the King synopsis from the movie thread:
Lord of the Rings Pt3: The Return of the King- (2003) Magnificent story composition. This movie always makes me emotional.
Sad to admit this, but I fast forward through much of the Frodo Gollum arc except for Shelob, Samwise saves Frodo and carries him up the mountain to their fate.
Spoilers/Memorable Plot Points
- Arwen gives up immortality for love and a mortal life.
- The blade is reforged!
- Eowyn’s arc- unrequited love for Aragorn leading to the ultimate climax!
- The Stewart of Minas Tirith who refuses to acknowledge a scruffy ranger as his King.
- The lighting of the beacons against the Steward’s wishes.
- Riders of Rohan ride for Gondor.
- Nazgul fly! Gandalf’s light, fends them off!
- The really ugly Orc commander.
- The Steward tells Faramir, he’d rather have his other son Borimir alive. Faramir rides to apparent death to please his father, accompanied by Pippen’s mournful tune. (This brings a tear to my eye every time.)
- Aragorn takes the Dimholt Road to call in a debt. Fight for us and regain your honor!
- The assault on Minus Terith. The Steward yells Run Away! Gandalf knocks him on the noggin and tells the Soldiers of Gondore to fight!
- Nazgul hold air superiority until some eagles show up (later).
- Frodo setup by Gollum gets stabbed in the back by Shelob and Samwise kicks her butt.
- The Steward seeks a fiery end and does his impression of a Roman Candle in a magnificent dive.
- Riders of Rohan appear on a hill top overlooking the Battle of Pelennor Fields. King Theodin rouses his men to battle! A sword day, a red day and the Sun rises! They cut a huge swath through the orc army.
- Oliphants! The cinematography of Eowyn and Merry riding between the legs of these monsters slashing their legs is incredible.
- Gandalf speaks to Pippen of death, the journey does not end here.
- In one of the greatest fantasy battle scenes, Legolas takes down an Oliphant single handedly, killing 30 men and Gimli retorts that only counts as one!
- Aragorn devises a feint, a diversion, to help Frodo and Sam in Mordor, get to Mount Doom.
- Sam saves Frodo from orcs and carries him up the mountain.
- What are you waiting for? Just let it go! Gollum fulfills his destiny finally retrieving the Ring of Power.
- Bilbo, Frodo, and Gandalf leave Middle Earth with the Elves.
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