filmów

In a sentence

• Lubię oglądać różne rodzaje filmów.

  I like to watch different types of movies.

  'Filmów' is the genitive plural form of 'film' in Polish, used here after the word 'rodzaje' (types) to indicate belonging or association.

• Nie mam filmów na swoim komputerze.

  I do not have any movies on my computer.

  Here, 'filmów' is used in the genitive plural case to describe absence or lack of movies, which is common after negative expressions like 'nie mam' (I do not have).

• Kupiłem kilka nowych filmów na Blu-ray.

  I bought some new movies on Blu-ray.

  In this sentence, 'filmów' appears in the genitive plural case because it follows the quantifier 'kilka' (several), which requires the genitive case for the noun it quantifies.