It has been revealed by the MPAA that Catching Fire will have a PG-13 rating. Here's the reason given in the official bulletin:
Hunger Games: Catching Fire, The -For UK fans who are wondering, a PG-13 rating in the USA is equivalent to a 12-A.
Rated PG-13 for intense sequences of
violence and action, some frightening
images, thematic elements, a suggestive
situation and language.
What do you think the "suggestive situation" could be?!