Reading through the books again I realised that pretty much none of them have a normal (by today's standards) name. I guess that's the future thing Primrose is kinda normal, I suppose. But most of the others are names you wouldn't expect to see.
I read the books because I saw the trailer during the Super Bowl and was blown away by the plot to this strange movie. I thought his name was Peter. When I read that it was Peeta like the bread- I giggled. Then, I realized it made sense. Considering the strange names on Dragon Ball Z, which I watched in my teens- this is nothing!
Considering her sister's name was Primrose, I thought Katniss was beautiful xD As well as I laughed really hard at Peeta's name. As soon as I learned that he was a Baker's son I rofl'd. I really like unique names, and as the society is so unique, it works.