They currently do not have any convention dates in Nebraska.
To get info on the Twilight convention, just keep checking on the OFFICIAL web sites: www.stepheniemeyer.com www.thetwilightsaga.com and possibly www.twilightthemovie.com
The next convention is on March 5-7 2010 in Atlanta, GA
Maybe go to a Twilight Convention.
Twilight Zombies - 2011 was released on: USA: 20 December 2011
Twilight Tavern - 2011 was released on: USA: 12 January 2011 (video premiere)
Twilight Breaking Dawn Spoof - 2011 was released on: USA: October 2011
The last Twilight is Breaking Dawn and it comes out in September of 2011.
According to the online Watchtower convention search facility, there are no conventions in Dorset 2011.
November
1st July 2011. Mililani
Eternal Twilight 2 is run by the showmasters, and is being held in October at the Park Inn Northampton I think (You may have to google Eternal Twilight 2 just to check my details) and then you have the Twilight Tour in September although I am unsure about details on that one, so I'd recommend Google again :)