That's what a movie is. Most people judge a movie strictly on the story but you can get a story from a book. What does the film medium add? A movie is also editing, sound design, cinematography, acting, sets, costumes, etc.
Same. I've always liked the phrase, "it's not what you say, it's how you say it."
The human voice is an instrument and I don't care about the lyrics to most songs. They usually aren't saying anything interesting. To me it's more about how they say it.