May 19, 2005
Star Wars episode III - the revenge of the sith
It was released in 2005.
Episode III was released May 19, 2005.
World Premiere - 2003 Star Wars Episode III - Revenge of the Sith was released on: USA: 18 May 2005
Casting Session - 2005 Star Wars Episode III - Revenge of the Sith was released on: USA: 17 May 2005
Star Wars Episode III-VIII Rise of the Troopers - 2007 was released on: USA: 17 May 2007 (DVD premiere)
Robot Chicken Star Wars Episode III - 2010 TV was released on: USA: 19 December 2010 Japan: 18 November 2012
5 Second Movies - 2007 Star Wars Episode III 1-25 was released on: USA: 7 April 2008
No and there is not for other systems either. Star Wars Battlefront II was released on November 1, 2005 and the Star Wars: The Force Unleashed was released after for the PS2 as was Star Wars Episode III Revenge of the Sith
Lego Star Wars III: The Clone Wars was released in 2010 or 2011
Star Wars Episode III, is a released movie, movies typically don't undergo beta testing, I believe you are thinking of games/software.
Star Wars Episode III - Revenge of the Sith - 2005 VG was released on: USA: 4 May 2005 UK: 5 May 2005 Japan: 9 July 2005