Box-office sensation "Avatar" is back with a third movie this December, teasing epic family drama and stunning new creatures in the first trailer.

The preview will be shown exclusively in theaters with "The Fantastic Four: First Steps." EW caught an early look with a group of reporters.

Fire and Ash teaser poster introduces Varang, an intriguing new character fans are about to meet soon. Oona Chaplin, who is best known for playing Talisa Maegyr in Game of Thrones, makes her debut in Pandora as the new villain.