First things first. January is not spelled in English because this is an INTERNATIONAL Poster not American (See the title of the article).
Also the Tron: Legacy USA release date is still December 17th 2010.
I remember when the first Tron was released in theaters way back in 1982, and the hype that surrounded it. This will be this years successful Special Effect Extravaganza in place of Avatar. With Jeff Bridges reprising his role Tron: Legacy will draw fans that were children of the 80's (that's everyone over 30) and new generation fans alike. Sit down, shut up, and enjoy the ride!