Cheating perhaps since I'm counting the trilogy as one- but young teen me was just blown away at the time. The Mines of Moria, the Battle of Helms Deep, the Death of Boromir (spoiler alert!) Eoweyn battling the Witch King of Angmar... Anything with Sam Honestly. "I am no man!" "You bow to no one!"
I love rewatching them but I always remember how awesome it was to see them on the big screen in theaters for the first time.
