According to what rules are sets entered into setscene?

1. every movie set is entered only once, except it varies in their spacial appearance
2. an image is chosen, which shows the set at the most total level
3. the timecode is related to the first appearance of the set, not to the depicted image
4. dramaturgical references are not covered at present
5. characters are shown only, if there is no image without them
6. interiors are defined as a separate category
7. the time of day is not taken into account
8. every set is assigned to an epoch (the time of the movies story)