Nice work. I see IMDB still don't have an API. I wrote a little movie comparison web app in the past and had to resort to screen scraping IMDB too. Rotten Tomatoes on the other hand seems to embrace developers a lot more and has an excellent API.
EDIT: Just realised you aren't actually screen scraping IMDB but using OMDB API (http://www.omdbapi.com) instead, I'll have to check that out.