Advanced Search - Sequels

It would be great if you could add an option to the advanced search that would allow to search for titles with any "follows" and "followed by" connections.

I keep missing releases of sequels to movies I watched. I can't go through almost 1000 titles I watched to see if there has been a sequel. With this option I could easily reduce that list. 

Ideally I would receive an e-mail every time a "follows" or "followed by" information is added to a title I rated, but that seems a way harder thing to implement, so I would be happy with the addition to the advanced search.

Thank you