I think there could be an algorithm created that would predict what a person would rate a film if they haven't rated it yet. This would help them find titles that they would likely enjoy. Factors to be taken into account would be how the person has rated genre films in the past, the imdb score and particularly how users with similar taste have rated the film, and how the person has rated films with the cast and crew in the past. For example I am lookoing up a Martin Scorcese film. On average I rate them 1 point lower than the average user (don't know if I actually do, just making up for the example). The film has an IMDb score of 8, therefore all other things being equal it should predict that I will score the film 7. Or I am looking up a horror comedy with a score of 4.5 and on average I rate them 1.5 points higher than their IMDb scores. Therefore all other things being equal it should predict a score of 6 for me.