"Avatar" is on the cusp of toppling the domestic box-office record

NEW YORK – "Avatar" is on the cusp of toppling the domestic box-office record after leading all movies for a seventh straight week. James Cameron's 3-D epic earned $30 million over the weekend, and its domestic total reached $594.5 million, according to studio estimates Sunday. That puts the film only about $6 million behind the domestic record set by Cameron's "Titanic" in 1998 with $600.8