18A - "Suitable for viewing by persons 18 years of age or older. Persons under 18 must be accompanied by an adult. May contain explicit violence, frequent coarse language, sexual activity and/or horror."

This category includes an age restriction-you must be 18 years old to see these films without adult accompaniment. This category is designed to include films that are appropriate for audiences who have reached adulthood, but which may be considered by some parents to be appropriate for older teenagers in the company of an adult.

Many comedies that include detailed or crude sexual material or drug references also appear in this category, such as Forgetting Sarah Marshall (2008), Knocked Up (2007), or Pineapple Express (2008).

Most horror movies that include gore and nudity are placed in this category, such as Friday The 13th (2009), Saw V (2008), and My Bloody Valentine (2009).

Many adult dramas, with elements ranging from sexual themes to disturbing violence, also appear in this category. Consider Blindness (2008), The Reader (2008), and In Bruges (2008).