If you are using Cortana on your Windows Phone or Windows 10 preview device, you may want to dive into Settings > Interests to check off some new categories. It looks like the Cortana team has finally delivered on some new items for Cortana to follow, and we are excited to see how they work.
Sometime in the last few days 'Showtimes + Trailers' (found under Movies) and 'Pick the Winners' (found under Entertainment) were added to Cortana's information repository. Users can then enable the categories and the personal assistant will keep you up to date when there are changes.
Full story from the WindowsCentral blog...