In the 11 countries we surveyed, "Avatar" was the number one ranked movie. I'd say the two things that are the most popular in the world are "Avatar" and bananas.
Bananas: a good source of potassium. Avatar: a good source of yiffing.
I would have guessed it would be Avatar and chocolate. But I can't argue. I eat a banana every day, and for the most part I enjoyed Avatar. So, yeah, Avatar and bananas.