Sort by Runtime
Have you ever choose a movie to watch based on the length of free time that you have? I do. Sometimes, I have only 1 hr. and 30 mins left before I have to leave home, and wondering what movie I can watch during this free time. Full length movies run from 1 hr. to 3 hr. It's not very easy to check each movie in my collection to see how long it is (that's already a lot of time spending on finding).
Since Trakt.tv data provider already has runtime data, it would be very helpful to display this information in the movie detail (I don't see it anywhere. I might have missed it). And let users sort movies in collection or watchlist based on their length.