A loro piacciono i film

You can be also understood if you say "Loro amano i film". The pronoun "essi" is the plural form from the 3erd person pronoun "esso", as well as esse is the plural form from essa. Both are mostly literary, commonly used to design things instead of people, and in the spoken language both are being displaced by "loro" , which have no "sex". Arianna's answer is also quite correct. She used another verb, the verb "piacere" / to like instead of the verb "amare" /to love, and being piacere an intransitive verb, she used " a loro" / to them . Both verbs, amare and piacere can be used with the same meaning, although "amare" is a little more poetic, to say it in a word. Frank, let me disagree with you: When you write "i film", you are talking about all films, the movie industry, "Il cinema" in general. The question was very clear in that sense. In short words:" i film" is the category;" il film" is one specific movie. .

piacciono loro i film There are many ways of saying things in Italian. In the above phrase that I wrote, i film means "the films" as if there are specific films that is being referred to. However, if you are speaking of films in general, we can say piace loro il film Il film is talking collectively about films. Thank you for the question

"Essi amano i film".