In Ireland they have G, PG, 12A, 15A, 16 and 18 for cinema but for DVD it's G, PG, 12, 15 and 18.
Die Hard 5 has been given a 15A and is uncut. It was given a 12A and was cut for the UK. They could have given it a 15, but then all the younger kids couldn't get in and that would have lost them money. If 15 was renamed as 15A for the UK would that have made a difference I wonder?