Denzel Washington's thriller, Safe House, beat last weekend's box office champion, The Vow, to claim the top spot, taking$28.4 million at North American theatres during the President day holiday, which runs from Friday through
The Vow
The Vow wows in the US box office
It was a record-breaking non holiday weekend in the US box office, as four films each debuted with well over $20
Husam (Sam) Asi 