Edit: Also, it seems like the severity levels (low/medium/high) are arbitrary, meaning they will vary from film to film. It might make more sense to give categories sub-categories or tags. So for swear words, it would have the sub-categories of all the various words which might be used. For violence, it might have the tags of ('simulated', 'on screen', 'bloody'), etc. That way the viewer could decide what they want to see, and it would be somewhat consistent.