Sigourney Weaver is stepping out for the UK premiere of the new Avatar movie!

The 76-year-old Oscar-nominated actress joined co-stars Oona Chaplin and Stephen Lang at the premiere of Avatar: Fire And Ash on Thursday night (December 11) held at BFI IMAX in London, England.

Fellow cast members in attendance included Jemaine Clement and David Thewlis.

Earlier in the night, the cast attended the photocall for the new movie held at Butler’s Wharf Pier.

Directed again by James Cameron, the third movie in the blockbuster franchise takes audiences back to Pandora in an immersive new adventure with Marine turned Na’vi leader Jake Sully (Sam Worthington), Na’vi warrior Neytiri (Zoe Saldaña), and the Sully family.

Avatar: Fire And Ash hits theaters on December 19. Watch the trailer here!

FYI: Sigourney is wearing a custom Maison Margiela dress.

Click through the gallery inside for 45+ pictures of the Avatar stars at the UK premiere…More Here! »

Zoe Saldaña steps out for the Chinese premiere of Avatar: Fire and Ash held at Sanya Bay Convention Center on Tuesday (December 9) in Sanya, China.

The 47-year-old actress was joined by director James Cameron for the next stop of their global press tour to promote the upcoming movie.

That same day, Sam Worthington, Stephen Lang, Jack Champion, Trinity Jo-Li Bliss and Bailey Bass hit the red carpet at the Italian premiere held at arcadia Cinema Melzo in Milan.

In her hometown, Oona Chaplin went solo for the Spanish premiere of the movie at Kinépolis Ciudad de la Imagen in Madrid.

The cast first premiered the movie in Los Angeles the week before, and were last seen all together at the French premiere on Friday (December 5).

Avatar: Fire and Ash brings audiences back to Pandora in an immersive new adventure with Marine turned Na’vi leader Jake Sully (Worthington), Na’vi warrior Neytiri (Saldaña), and the Sully family.

The movie hits theaters NEXT Friday, December 19th. Watch the trailer here!

FYI: Zoe is wearing Erdem. Bailey is wearing a Teresa Helbig dress. Jack is wearing AMI Paris.

Browse through the gallery to see 30+ photos from the latest Avatar: Fire and Ash premieres…

Zoe Saldana is stepping out for the premiere of the new Avatar movie!

The 47-year-old Oscar-winning actress along with Sam Worthington and Sigourney Weaver all coordinated in black outfits for the European premiere of Avatar: Fire And Ash on Friday (December 5) in Boulogne-Billancourt, France.

Fellow cast members in attendance included Oona Chaplin, Stephen Lang, Bailey Bass, Jack Champion, Trinity Jo-Li Bliss, and Britain Dalton.

Director James Cameron was also in attendance with wife Suzy Amis Cameron along with Sam‘s wife Lara Worthington.

Earlier this week, all of the stars were in Hollywood for the world premiere of the new movie.

The third movie in the blockbuster franchise takes audiences back to Pandora in an immersive new adventure with Marine turned Na’vi leader Jake Sully (Worthington), Na’vi warrior Neytiri (Saldaña), and the Sully family.

Avatar: Fire And Ash hits theaters on December 19. Watch the trailer here!

Click through the gallery inside for 50+ pictures of the stars at European premiere…

The stars of the new Avatar movie are taking over Paris!

Zoe Saldana, Sam Worthington, and Sigourney Weaver attended the photocall for Avatar: Fire And Ash on Thursday (December 4) held at Hotel Shangri-La in Paris, France.

Fellow cast members Oona Chaplin and Stephen Lang were also in attendance along with director James Cameron.

Earlier this week, all of the stars were in Hollywood for the world premiere of the new movie.

The third movie in the blockbuster franchise takes audiences back to Pandora in an immersive new adventure with Marine turned Na’vi leader Jake Sully (Worthington), Na’vi warrior Neytiri (Saldaña), and the Sully family.

Avatar: Fire And Ash hits theaters on December 19. Watch the trailer here!

FYI: Zoe is wearing a Balenciaga outfit and Cartier jewelry.

Click through the gallery inside for 35+ pictures of the stars at the photocall in Paris…

We’re still a few weeks away from Avatar: Fire and Ash hitting theaters, but a lucky audience just watched the movie alongside the cast at the world premiere!

Zoe Saldana, Sam Worthington, Sigourney Weaver, and more stepped out for the red carpet event on Monday night (December 1) at the Dolby Theatre in Hollywood.

Other cast members in attendance included Stephen Lang, Oona Chaplin, Cliff Curtis, Britain Dalton, Trinity Jo-Li Bliss, Jack Champion, Bailey Bass, and