From my personal experience and from the (anecdotal) evidence it seems like music is way more addictive (for the lack of a better word) than film (movies).
For instance, when a new record from my favorite singer or band is released, I can listen to it a few times a day for several days or maybe even weeks. And then the frequency slowly tapers off, but I can still listen to it every week or month for many many years. For film it is completely different story. Even the movies that I consider absolute masterpieces, I would rewatch it maybe once every 6 months / year.
Why is it the case? Is it because visual media is more... intense, rich, contains more "meaning" per unit of display?
But even if that's the case, I would doubt it would explain such dramatic difference in watching / listening frequencies - once per 6 months and hundreds of times.