Excalibur (film)
When first released in the United Kingdom in 1981, the film ran to 140m 30s, and was classified as a "AA" by the BBFC, restricting it to those aged 14 and over. In 1982, the BBFC replaced the "AA" certificate with the higher age-specific "15", which was also applied to "Excalibur" when released on home video.
Excalibur (film)
In keeping with this approach, the film is intentionally anachronistic. For example, the opening titles state the setting to be the Dark Ages, even though the knights wear full plate armour, a technology of the 15th century. Knights, knighthood and the code of chivalry also did not exist during the period. Furthermore, Britain is never mentioned by name, only as "the land".