Interesting, checked the totals at box office mojo and the estimates show the following:
Night at the Museum: $53,500,000
Terminator Salvation WB $43,010,000
these are weekend totals.
Gross estimates are:
Night of the Museum-$53,500,000
Terminator-$56,382,000
"They say a good man now rules the union".
"Night at the Museum, Battle of the Smithsonian".