"There's a whole generation that's never seen Titanic as it was meant to be seen, on the big screen," Cameron said.

'Avatar' broke the seemingly insurmountable record set by 'Titanic' in little over six weeks, handing Cameron the remarkable feat of directing the world's two biggest movies of all time.

On Tuesday it should pass the $600.8 million amassed in 1997-98 by Cameron's own Titanic and become the all-time domestic box-office champ (in fake dollars).