Documentaries vs. documents

B1- B1 B2 C1

WRONG: I love watching  documents about nature.
RIGHT: I love watching documentaries about nature.

A document is a piece of paper, or a booklet, which contains information. But in English, it is not the real-life film which is based on facts. That is a documentary, or if you like, you can say documentary film.

Even the verb we use with them is different – we ‘look at’ documents and we ‘watch’ documentaries. So to say, „I love watching documents“ sounds a little bit strange.

Also note that we use the preposition ‘about’ to refer to the subject of the documentaries, so we would say, „I love watching documentaries about nature.“