Morena: Washington, D.C.
Chris Buchanan (Executive Producer): Portland
Lonnie Peristere (Visual Effects Supervisor/Second Unit Director): Atlanta
Alan Tudyk did not attend the Portland screening because of his commitment to Spamalot!
No one at: Austin, Boston, Dallas, Hartford, Kansas City, Las Vegas, Miami, Norfolk, Philadelphia, Phoenix, Providence, San Francisco, Seattle
I will point out that Keith RA DeCandido (the Novelization author) was at the Hartford screening.