Okay, this is a minor beef, but just so you know:
You should always refer to recorded art (books, albums, movies, etc.) in the present tense.
CORRECT: “The Godfather is a good movie.”
Context: It continues to be a good movie and will do so until the end of time.
INCORRECT: “The Godfather was a good movie.”
Context: I used to think it was good, but I don’t anymore.
Remember, just because you experienced it in the past doesn’t mean it doesn’t still exist.
“That IS a good movie. That IS a good book. That IS a good song.”
Performance art is different. “That concert was great” is expected.
That is all. As you were, soldier.
Unless the work of “art” doesn’t hold up. For example, Burnt Offereings was a good movie.