This is the 11654th most frequent Turkish word.
filmlerin
"Filmlerin" means "of the films" or "the films'".
'Filmlerin' here specifies the ownership over 'the story', emphasizing the relation between 'films' and 'story' using the genitive plural form.
Filmlerin hikayesinde birçok ilginç detay vardı.
There were many interesting details in the story of the films.
Here, 'filmlerin' is in the genitive plural form, indicating the possession of the films' plot.
Filmlerin kurgusu çok etkileyiciydi.
The plot of the films was very impressive.
In this sentence, 'filmlerin' denotes 'the films' endings', showcasing the possession aspect which is inherent in genitive case usage.