Restricted - "Admittance restricted to persons 18 years of age and older. Content not suitable for minors. Contains frequent sexual activity, brutal/graphic violence, intense horror and/or other disturbing content."

This is the most heavily restricted category in use by Alberta Film Classification; no one under the age of 18 may be in the theatre under any circumstances.

These films contain the most graphic violence, sexual violence, or other disturbing content that is available to moviegoers.

Films such as Neighbor (2009) and Tokyo Gore Police (2008) represent the range of graphically violent or sexually violent material in this category.

Disturbing content, combined with sexual activity and violence can be found in this category in films such as Antichrist (2009) and Wicked Lake (2008).

Films depicting unsimulated sexual activity, whether in live action, such as Shortbus (2006), or animation, such as Waltz With Bashir (2008), receive the R classification.