So, as much as alot of people will hate to know this, it seems as though New Moon did it. HARD. The following from ComingSoon.net
After setting a new record for midnight openings with $26.27 million at 3,514 theaters, Summit Entertainment's The Twilight Saga: New Moon has also broken the record for a single day, earning $72.7 million on Friday at 4,024 theaters. The previous single day record of $67.2 million was held by The Dark Knight.
It looks like The Dark Knight's 3-day record of $158 million may be in jeopardy now as well.
Surprised, but expected I suppose. We'll have more as it develops.