It's official! The title of the final Star Wars prequel film is Episode III: Revenge of the Sith.

The universally loved sci-fi fantasy will hit the screens on May 19, 2005.

A representative of filmmaker George Lucas at San Diego's Comic-Con International made the announcement.

So, what are Siths anyway?

Answer: Masters of the dark side of the Force and sworn enemies of the Jedi.

The official website, starwars.com, also adds that in the final version the Siths will 'finally exact their revenge on the Jedi'.

Photograph: Sandy Huffaker/Getty Images