"Avatar" Gets Blue-Carpet Debut

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Canadian-born director James Cameron, left, arrives with his wife, Suzy Amis, for the world premiere of his latest movie, "Avatar," in London's Leicester Square, Thursday, Dec. 10, 2009.

"Avatar" Set To Open

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The character Neytiri, voiced by Zoe Saldana, is shown in this scene from "Avatar." The first movie from Cameron since his blockbuster hit "Titanic," this sci-fi thriller opens in theaters Dec. 18.

Zoe Saldana Helps Launch "Avatar"

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Actress Zoe Saldana arrives for the world premiere of her latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009.

Sigourney Weaver Helps Launch "Avatar"

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Sigourney Weaver arrives for the world premiere of her latest movie, "Avatar," in London's Leicester Square, Thursday, Dec. 10, 2009.

Laz Alonso Helps Launch "Avatar"

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Actor Laz Alonso arrives for the world premiere of his latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009.

Sam Worthington Helps Launch "Avatar"

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Australian actor Sam Worthington, right, arrives with unidentified guest for the world premiere of "Avatar" at a London cinema in Leicester Square, Thursday, Dec. 10, 2009.

Cast, Director Celebrate "Avatar"

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At the world premiere of his latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009, director James Cameron, third from right, poses with actress Sigourney Weaver, fourth right; actress Zoe Saldana, fifth right;. actor Giovanni Ribisi, left; actor Stephen Lang, second left; actress Michelle Rodriguez, third left; actor Joel David Moore, fourth left; and actor Laz Alonso, fifth left.

Michelle Rodriguez Helps Launch "Avatar"

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Actress Michelle Rodriguez poses on the blue carpet for the world premiere of "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009

Joel David Moore Helps Launch "Avatar"

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Joel David Moore arrives for the world premiere of his latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009.

Giovanni Ribisi Helps Launch "Avatar"

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Actor Giovanni Ribisi arrives for the world premiere of his latest movie, "Avatar," in London's Leicester Square, Thursday, Dec. 10, 2009.

Worthington Poses for Photos at "Avatar" Premiere

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Australian actor Sam Worthington arrives for the world premiere of "Avatar" at a London cinema in Leicester Square, Thursday, Dec. 10, 2009.

Sigourney Weaver Strikes Pose at "Avatar"

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Sigourney Weaver poses for photographers at the world premiere of her latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009.

Zoe Saldana Helps Launch "Avatar"

AP

Actress Zoe Saldana arrives for the world premiere of her latest movie "Avatar" in London's Leicester Square, Thursday, Dec. 10, 2009.

James Cameron Celebrates "Avatar" Debut

AP

Canadian-born director James Cameron, left, arrives for the World Premiere of "Avatar" with wife, Suzie, at a London cinema in Leicester Square, Thursday, Dec. 10, 2009.