Game of Thrones

Finished watching the Game of Thrones. I still feel like I have seen it before. I searched the internet to see if there was another movie made from the book Song of Fire and Ice - nothing. I have had this happen before. Live something and feel like I had already lived it. It is a strange feeling for sure.

I am watching Game of Thrones on HBO. I feel like I have seen this movie before. It is driving me crazy. I have looked up online and cannot find any reference to any other moving being based on the book Song of Fire and Ice.