Box Office Mojo predicts that DS will take in 7.5 million in the USA this weekend.
movie attendance in general has been on the decline for years, since we now have so many more choices available to us nowadays (DVDs coming out so much more quickly, cable, on demand, streaming, etc. etc.). So even though there are breakouts like The Avengers, it's tough for a typical box office of today to compare with that of years ago.
i also peeked into a theatre showing DARK SHADOWS and it was about 95% full!
DS was predicted to be #6 this weekend, but it came in at 5!