That's really nice. It would be amazing if you could add IMDb ratings though, and the ability to sort/filter by them (e.g. only show me films with a rating >7).

You can download the IMDb rating database, although I think it has a very restrictive licence. Alternatively there is this: http://www.omdbapi.com/ - but I wouldn't count on it being around forever. It seems like they would be on shaky legal grounds (but at least it would be them getting sued rather than you).