Last night I guess was an "opening night." For what it's worth, here is some pre-sales info.
http://boxoffice.com/featured_stories/2009/05/new-trek-selling-fast.php
Star Trek accounted for 80-90% of both Fandango and MovieTicket.com's sales this past week.....
Fine, but, I have a question... what other movies debuted this week? I had heard that this was PRE-Sales, meaning, sales before the movie is released. It's pretty easy to get the bulk of ticket sales if you're the only new offering on the plate.