I think it would be totally awesome if you could sort your watchlist by genre and film length. A lot of the times when I'm looking for something to watch I find that I'm usually in the mood for a specific. Sometimes I need something funny and other times I may be in a more serious mood. It would save a lot of time when looking through your watchlist. Searching by length would be useful as well since since there are times when you have an allotted amount of time like before work, if you want to go to bed by a certain time, if you have time to kill before going somewhere, etc.