I saw the midnight showing of Watchmen, and I figured that since it was genre fans that filled up the midnight showing, I thought the trailers that were shown would get a reaction. The Star Trek trailer was the 1st one shown, and the audience reaction was great. The first shot of the Kelvin in battle was received with a collective whoa from the audience. When Sulu came on screen fighting the Romulans, the audience broke out in applause, probably since he is Harold from Harold and Kumar Go to White Castle. There was a similar reaction when Simon Pegg was shown. At the end of the trailer, when the title card came up, about half the audience started clapping, and some guy in the front row threw up the Vulcan salute, and everyone cheered some more. Some guy behind me then went, "I can't believe that was Star Trek. Holy shit."
However, since most of the people there are genre fans, I figured for all the trailers the reaction was the same. The Terminator trailer was next, but that was met with silence, so I figure the Trek trailer really got to people.
On the big screen this movie is going to be INCREDIBLE.