When you think of "Star Wars," you might think of this.

https://www.youtube.com/watch?v=hNv5sPu0C1E

But you would NEVER think of this.

https://www.youtube.com/watch?v=GbUeK1PP7-s

And of course not, why would you? That's not even the same movie — or the same universe!

But with the debut of "Star Wars: The Force Awakens," and the 25th anniversary of "Home Alone," 2015 marks a big year for both films. And they do have one thing — or more like, one man — in common: John Williams.

He's written the film score for generations of moviegoers. That's why Emilio Audissino, an assistant professor of film production at the University of West London, was shocked to learn that there had been no English-language book written about the famous composer. So, he wrote the book himself, titled "John Williams's Film Music: Jaws, Star Wars, Raiders of the Lost Arc, and the Return of the Classical Hollywood Style Music."

Audissino joins host A Martinez to tell more about John Williams talent and legacy.   

To listen to the full interview, click on the blue audio player above.