What are the release dates for I Witness - 2003?

What are the release dates for I Witness - 2003?
I Witness - 2003 was released on:

USA: 13 April 2003 (Method Fest Independent Film Festival)
Argentina: 11 September 2003 (video premiere)
Germany: 11 September 2003 (DVD premiere)
Spain: 22 October 2003 (video premiere)
Italy: 16 March 2004 (DVD premiere)
Bulgaria: 14 April 2004 (DVD premiere)
UK: 6 September 2004 (DVD premiere)
Hungary: 11 November 2004 (TV premiere)
Sweden: 25 July 2007 (DVD premiere)
USA: 4 September 2007 (DVD premiere)