This is the 11011th most frequent Polish word.
filmem
"Filmem" means "film" or "movie" in the instrumental case in Polish.
In this sentence, 'filmem' is used as part of the noun phrase 'ten film', which indicates a specific movie to watch.
Czy możemy obejrzeć ten film z kolegami?
Can we watch this movie with our friends?
Here, 'filmem' is the instrumental case form of the noun 'film', used to show a relationship of means or manner in the sentence.
Jestem zafascynowany tym filmem, gdyż porusza pasjonujące tematy.
I am fascinated by this movie because it touches upon fascinating topics.
In this example, 'filmie' is in the locative case (not directly 'filmem'), but it is related to discussion and reflection upon the movie.