Young hobbit Frodo Baggins, after inheriting a mysterious ring from his uncle Bilbo, must leave his home in order to keep it from falling into the hands of its evil creator. Along the way, a fellowship is formed to protect the ringbearer and make sure that the ring arrives at its final destination: Mt. Doom, the only place where it can be destroyed.
This movie contains 42 potentially triggering events.
In the Shire, Gandalf smokes a pipe with an unknown substance. Another character later chides him "Your love of the Halflings' leaf has clearly slowed your mind."
Main Character exhibits addiction-like symptoms towards the ring. There is no actual addiction shown aside from frequent alcohol use (however it is portrayed as natural for Hobbits and it is something that everyone does.)
No heads are squashed. However, a large wooden wall is knocked over onto a man and is then trampled over by horses. Death or degree of injury are unclear and no sounds are heard but he is pretty clearly “squashed”.
Frodo is shown drifting in and out of consciousness after being stabbed. He wakes up in a bed in Rivendell with clean clothes and minimal pain, implying he was out for some time while the Elves healed him.
There are only two or three decapitations of orcs in this one (their blood is black, not red) and sight of mostly darkish red blood and wounds on more humanlike characters but no gore involving bones or organs aside from orcs' eyes getting shot with arrows (was that in this or just the later ones?).
Two cases of self-sacrifice. Gandalf sacrifices himself while fighting the Balrog. Towards the end, Boromir sacrifices himself to try to keep the hobbits safe from the Uruk-hai.
Many orcs and trolls are killed in Moria. In the battle towards the end of the movie, Uruk-hai are killed. The Balrog and Gandalf both fall in Moria but their exact fate isn't shown until the next movie.
there is a scene where a character believes he has lost the Ring (which as discussed elsewhere has an addictive effect) he suddenly becomes very panicked and the music becomes tense, and then he calms down when he finds the Ring. this is never brought up or discussed as a panic attack but may resemble one depending on your interpretation
the is a long sequence where the characters are trapped in a mine/cave system by a cave-in and must find a route out. however all the underground spaces are extremely large. characters mention they have been underground for multiple days
Not exactly suicide, but two separate characters stay behind to fight a battle they know they cannot win to give the other’s time to get away. Both are killed. One scene is quite extended.
Not explicitly, although many of the dwarves’ traits mirror antisemitic stereotypes (eg obsessed with wealth/treasure and power, short/stout bodies, large noses etc). Tolkien also drew inspiration from Hebrew to develop the dwarvish languages.
Arwen is the niece of Elros, Aragorn's half-elven ancestor who went to join the Numenoreans an extremely long time ago. However it states in the Silmarillion that a relationship involving people more distant than third cousins isn't considered incest by the Numenoreans.
There’s no sexual content shown, although intimate displays of affection are shared amongst friends and lovers alike in this movie (eg hand holding, hugging, kissing, face caressing etc)
It doesn't have a definitive ending because it continues onto the next two movies. The story in total has a happy ending, but Fellowship of the Ring has a semi-unhappy, cliffhanger-ish ending