Only films and videos that are related to the instructional program should be used in the classroom. At the elementary level, a film or video which possesses a rating of "PG" that is related to the instructional program may be shown only with prior written parental permission. Under no circumstances may a film or video which possesses a rating of “PG–13” or "R" be shown at any instructional level. Films housed in the school library are approved for viewing in the classroom. Films or videos that do not possess a rating may be shown only after being reviewed and approved by the school principal.