The science-fiction sensation "Avatar" and the war-on-terror thriller "The Hurt Locker" lead the Academy Awards with nine nominations each, including best picture and director for James Cameron and ex-wife Kathryn Bigelow.

For the first time the Oscars feature ten best-picture contenders instead of the usual five.

Also nominated for best-picture Tuesday: "District 9"; the animated comedy "Up"; the World War II saga "Inglourious Basterds"; the football drama "The Blind Side"; the recession tale "Up in The Air," the 1960s drama "A Serious Man," and the teen tales "An Education," and "Precious."

Acting nominees include Sandra Bullock for "The Blind Side," Jeff Bridges for "Crazy Heart," Mo'Nique for "Precious" and Christoph Waltz for "Inglourious Basterds."

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