Ratings: Presenting more accurate ratings for movies & more

I would suggest you a rating system which will give more accurate ratings;
I suppose you are calculating ratings by the average of total ratings.

What I would suggest you to may be second rating based on people who rated for the movie categories more.
For example I rated for sci-fi and action movies more then other movies.
Then you may take into account my rating for the sci-fi or action movies.
But for the other genres you do not take into account my rating.
This can be a second rating based on genres.
And with this way people may get a better rating feedback for movies.

Regards,
Kubilay Bayraktar