'Hangover' is No. 1 at the U.S. box office

LOS ANGELES, June 8 (UPI) -- Despite early estimates that put "Up" at the top of the U.S. box office this past weekend, numbers released Monday indicate "The Hangover" is the true leader.

Variety.com said the R-rated comedy "The Hangover," starring Ed Helms, Bradley Cooper and Heather Graham, performed better than expected Sunday, raking in a weekend total of $45 million.

Disney-Pixar's animated adventure "Up," meanwhile, earned between $44.3 million and $44.4 million from Friday to Sunday, the entertainment industry trade newspaper said.

Estimates provided by the studios Sunday suggested "Up" would win the weekend at $44.2 million, while "Hangover" would follow in second place with $43.3 million.

Aside from the 1-2 place switch Monday, the rest of the U.S. box office's top 10 rankings remained the same.

"Land of the Lost" came in at No. 3, followed by "Night at the Museum: Battle of the Smithsonian" at No. 4, "Star Trek" at No. 5, "Terminator Salvation" at No. 6, "Drag Me to Hell" at No. 7, "Angels & Demons" at No. 8, "My Life in Ruins" at No. 9 and "Dance Flick" at No. 10.