When someone, for example, reads a book or watches a movie, and they say:
"It was a good movie" or "It was a good reading"
Are these kinds of sentences a dummy-it or just an "it" being used to refer to a noun, in these cases, the movie that was watched and the book read?
And by the way, I should always use a subject unless the subject is implied like in the imperative mood, right?
I just wanted to check this after reading this article of Thought.co, https://www.thoughtco.com/dummy-it-in-grammar-1690414