It was a busy weekend at the box office. The Memorial Day holiday period is a time when studios try to set a good financial tone for their summer slates.

And it looks like News Corp. (NASDAQ: NWS) is the winner. The media company's Night at the Museum: Battle of the Smithsonian project, starring Ben Stiller, grossed an estimated $53 million at domestic multiplexes over the past three days according to Boxofficemojo. That was a good performance. The first Night at the Museum took in $30 million in its first three days of release back in Christmas 2006.

I was surprised that News Corp. came out on top. Did anyone out there think that Terminator Salvation, from Time Warner (NYSE: TWX), wouldn't be number one?

Last week's number-one picture, Star Trek, had to yield to a newcomer this week. Angels & Demons, distributed by Sony (NYSE: SNE), took the top spot this past weekend at domestic theaters, according to Boxofficemojo. The movie is credited with $48 million as of early estimates.

Trek, distributed by Viacom (NYSE: VIA), came in second with $43 million. And I have to say, although I wasn't impressed with the movie's box-office debut, I thought that the second weekend was relatively strong. I expected a better than 50% drop for its sophomore frame. As of current data, Trek only shed roughly 40% of its opening gross. Good job (I still think the opening was weak, though). The film is close to the $150 million mark.