Speaking with MCV, marketing big wig Murray Pannell has said that James Cameron's Avatar could be as big as Harry Potter, and might become a household name of the future.

"Avatar looks set to be a world-changing kind of cinema given its pedigree and elements like the 3D," Pannell told the publication.

"It reminds me of my experience at EA, working on the original game - which was an incredible entertainment phenomenon.

"Avatar has director James Cameron, and Potter also had one person ultimately in charge - JK Rowling, who everyone was terrified of disappointing. That can give you real focus."

We're hoping for a closer look at Avatar at GamesCom later this month.

By Luke Guttridge