R

R –“Restricted. Under 17 Requires Accompanying Parent or Adult Guardian”: The MPAA applies this rating to movies they believe contain a high level of adult content, such as harsh profanity, intense violence, explicit sexual content and extensive drug use. In some states, the minimum age to see an R rated movie unaccompanied is 18.

(note: we don’t even bother previewing NC-17 rated movies – these were formerly called “X”)