Snakes on a Plane not a "huge" blockbuster

The snakes seem to have won this one... from the Indy Star:

The Internet buzz over "Snakes on a Plane" turned out to be nothing to hiss about. The high-flying thriller preceded by months of unprecedented Web buildup technically debuted as the No. 1 movie, but with a modest $15.25 million opening weekend, according to studio estimates Sunday.

I wonder if it would have done better if it were released earlier this summer?