"Batman Begins" debuted as the top movie with $46.9 million, while overall movie revenues skidded for the 17th straight weekend, tying a slide in 1985 that had been the longest box-office decline since analysts began keeping detailed records on movie grosses.
The top 12 movies took in $128.5 million, down 1.6 percent from the same weekend in 2004, according to studio estimates Sunday.
"People have so many options today. They have DVSs and video on demand. It just becomes increasingly challenging to get people into movie theaters," said Paul Dergarabedian, president of Exhibitor Relations, a box office tracking firm.
An Associated Press-AOL poll out last week found that 73 percent of adults prefer watching movies on DVD, videotape or pay-per-view rather than going to the theater.
Studio executives blame the downturn on a comparatively weak lineup of movies this year and say it will take more time to determine if DVDs and other home-entertainment options are eroding theater business.
"Certainly, we need to look at that, but I believe you can't do it by looking at six months. I think you have to take a couple of years to look at it," said Dan Fellman, head of distribution for Warner Bros., which released "Batman Begins."
"We're still product-driven, and even though there were and will continue to be strong movies in the summer, I don't think there have been enough of them."
Revenues this year are down 6.4 percent compared to 2004's, according to Exhibitor Relations. Accounting for increased ticket prices, admissions are off 9 percent.
In an appearance on CBS News' Early Show, Dergarabedian said quality movies don't necessarily guarantee box office success. He pointed to "Cinderella Man," as an example of a well-made movie that nevertheless did poorly at the box office.
"That kind of movie appeals to an older audience," he said. "Sometimes it is tough to get them into the theater. If you appeal to the 20-somethings, they'll go out to the theater. With a Depression-era story, it will appeal to a much older audience."