Third 'Avatar' film stays atop N. American box office rankings

The third installment in director James Cameron's blockbuster series stars Zoe Saldana as Na'vi warrior Neytiri and Sam Worthington as ex-Marine Jake Sully, who must battle a new foe threatening their family's life on the planet Pandora. The film grossed $217.6 million at the box office worldwide during the current weekend, according to estimates. "Zootopia 2," Disney's feel-good animated film and an Oscar contender, rose to number 2 from 5 in the rankings, bringing in $20 million, according to weekend estimates.