'Avatar' Joins The Billionaire's Club... But Will It Sink 'Titanic'?

Over the weekend, director James Cameron's sci-fi epic "Avatar" crossed the threshold of $1 billion in worldwide box office figures. Only four movies before it have ever managed to achieve such legendary status: "The Dark Knight" (which "Avatar" is already ahead of in the numbers race), "Pirates of the Caribbean: Dead Man's Chest," "The Lord of the Rings: Return of the King" and "Titanic," notably the last feature Cameron directed (released in 1997) before "Avatar."

Now we have to start asking ourselves if "Avatar" has the legs to beat the biggest of all "Titanic" records: top-grossing domestic release of all time. The Leonardo DiCaprio/Kate Winslet-starring sinking ship movie has been sitting in the #1 spot for more than a decade, with a figure that falls just north of $600 million. "Avatar" is more than halfway there, with more than $350 million in domestic box office ticket sales. There's also the worldwide figures to consider: "Titanic" holds that record too, with $1.8 billion earned. "Avatar" currently sits at just shy of $670 million.

We want to hear your opinion: does "Avatar" have the legs to steal either #1 spot away from "Titanic"? Even if it falls in at #2, what would that mean, to have Cameron dominating Hollywood's top all-time sales charts? Cast your vote below and then share your thoughts in the comments (remember, you can sign in using your Facebook ID) section or on Twitter.