Our weighted-average calculations are formulated to reduce the effects of unusual rating patterns and to accurately represent the global consensus for each film. We do not disclose the specific details of this approach (to protect its integrity), and we may make changes to the approach from time to time to ensure its effectiveness. While you’re welcome to report a member who has, for example, cast a single five-star (or half-star) vote for a particular film as part of an online campaign, our system is designed to ensure that such ratings have no bearing on the film’s weighted average.