One of the most highly anticipated movie trailers of the year has finally hit the Internet. Fans finally get a 3 minute look at the upcoming James Cameron (Titanic) film Avatar and not only do you get a better glimpse of the special effects, you can now find out the storyline for the movie.

Avatar stars Sam Wortington (Terminator Salvation), Zoe Saldana (Star Trek), Sigourney Weaver (Alien), Michelle Rodriguez (Resident Evil), Giovanni Ribisi (Gone in 60 Seconds) and CCH Pounder (Orphan).

Avatar hits theaters in 3D on December 18, 2009.