This is the 1848th most frequent Polish word.
francuzi
"Francuzi" means "French people" in English.
In this sentence, 'Francuzi' is used as the subject of the sentence, referring to the people of France collectively.
Francuzi lubią dobre wino.
The French like good wine.
Here, 'Francuzami' is the instrumental plural form of 'Francuzi', showing the means by which the action was completed (speaking with French people).
Rozmawiałem z kilkoma Francuzami wczoraj.
I spoke with a few French people yesterday.
In this sentence, 'Francuzi' is again a subject, now in a relative clause, emphasizing their role as producers of films.