According to The Hollywood Reporter, Jodie Foster's Flightplan stayed aloft at the boxoffice, her airplane thriller taking in an estimated $15 million to remain the No. 1 movie over a rush of new wide releases.

The science-fiction tale Serenity, a continuation of writer-director Joss Whedon's cult TV series Firefly, debuted in second place with roughly $10.1 million, according to studio estimates Sunday.

The overall boxoffice, which had surged since Labor Day, fell back into a slump that has persisted most of the year. The top 12 movies grossed $75.3 million, down 26% from the same weekend in 2004, when Shark Tale opened with $47.6 million. The animated fantasy Tim Burton's Corpse Bride was No. 3 with roughly $9.8 million, lifting its total to about $32.9 million after two weekends in wide release.

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