Related Clues:
- Having adult content, say
- Like some adult movies
- Like films with adult themes
- More violent than PG-13
- For mature viewers
- Like many horror films
- Not for most teens
- Marked by obscenities, say
- Deemed not suitable for kids
- Not for tots
- Like steamy films
- Violent, probably
- 2009 Rihanna album with 'Russian Roulette'
- Like very violent films
- Not for kids, as films