rabroad here:
http://www.digitalspy.co.uk/article/RAB25111.html
In the UK, Serenity opens as the number #1 new opener, the #1 movie for the weekend and the #1 highest gross per screen.
The gross per screen is actually FAR higher than the competition - more than double the hyped "Nightwatch", for example.
Serenity has taken $23m in 10 days, including international figures, and has only opened in 3 countries so far. It opens in the rest of the world over the next 3 months.
Serenity's US weekend 'actual' (not estimated, actual figures) drop was 47% this weekend, which is the lowest Sci-fi genre drop since "Star Wars Episode 2" in 2002.
Combining internationally and DVD sales (which will be huge, make no mistake -- Firefly is one of the highest selling DVD sets ever made), Serenity WILL turn a profit. It is NOT a flop.
That said, I'm not sure if it'll be worth a sequel at this stage. If other international markets open #1, it will push a lot of money Serenity's way.
In the UK, Serenity is the biggest movie of the weekend, and also: #1 Monday, too.
Serenity also grew 39% from Friday to Saturday in the UK.
It's opened big...
rabroad have a 5 star review of the movie here:
http://www.digitalspy.co.uk/article/RAB25092.html (spoilers)