I've read The Hobbit and The Fellowship of the Ring, and I'm about half way thou The Two Towers.
The ship sinks!
No, wait, wrong spoiler.
He's a ghost!
...nope, still the wrong one.
They
all did it!
...hmm,
In other words, enjoy your read, even (especially!) if you saw the films. I remember having to pester the library, a good three decades back when I was trying to read TLOTR, when the third book wasn't on their shelves after I had read the other two.
Mind you, I also pestered them for one of the books in the "Mission Earth Decalogy" by everyone's favourite religious founder[1], which was also missing from the shelving and stymied my progress through that section of the shelves, so I know (in hindsight) that I wasn't particularly discriminating at the time...
[1] This offer of "favouritest religious leader"
is available in the shops, but may not apply: to Christians; Mohammadeans; those who are otherwise Abrahamic; devotees of short squat fat guys; of guys and gals with odd numbers of limbs, funny colours and/or animal heads; followers of Master Kong; spirit studiers of all kinds; 'dreamtime' specialists; cargo cultists; Earth Mother workshippers; motor-cycle repair manualists; IPUists; Pastafareans... Did I miss anyone[2][3]?
[2] By more than a country mile, that is.
[3] Noting that I hadn't included my
own religion of Next Thursdayism.