The Avatar franchise currently stands as a trilogy, but which of James Cameron's sci-fi blockbusters is the best? The filmmaker responsible for cultural cornerstones like Aliens, the first two ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Avatar YouTube channel "Avatar: Fire and Ash" debuts in theaters later today (Dec. 18).

To reiterate: None of this is real. Not the giant blue aliens, or the banshee dragons that they fly around on, or those floating mountains, or the huge, whale-like tulkun. We’ve known for years that ...