Off the top of my head, content acquisition. Which content to acquire, from which production house, with which actors, in what language, how did they do in the theatres. You can compare these indexed data with internal data, and find correlation. Netflix did them all with in house data, and they can do it because they have 114,000 years of streams every month[1]. Their dataset is large enough to pretty much represent what the general public wants. For up and coming companies, this is very helpful.
[1]http://gigaom.com/2013/09/18/building-vs-buying-how-netflix-...