Classification Categories

The research into Classification categories is important as we need to suit our film to a particular classification category, the reason for this is because if there is any inappropriate content or violence in our film opening we will need to warn the public on who is suitable to watch it. Post apocalyptic films have varied classifications, these vary between PG13-18, it is rare to find any below a PG13 due to the violence in the films.
Here are a couple of examples:

I Am Legend - (15)
Shaun of the Dead - (15)
After Shock - (18)
2012 - ( PG13)