Liongate's new horror film "The Last Exorcism" has temporarily won the North America box office derby but may trade its position with another debut of the week, "Takers," as the tallies have virtually tied.

"The Last Exorcism," a low-budget fake-documentary horror film is projected to have bagged 21.3 million dollars in movie tickets sales over three days beginning on Friday, the North America box office authority said. "Takers," a Sony/Screen Gems action film dealing with a group of bank robbers who find their 20 million-dollar plan interrupted by a hard-boiled detective, trails behind with 21.0 million dollars in sales estimates.

The two films could report last-minute sales that could change their results after the final results were tallied after the business is closed after midnight, the authority said.

"The Expendables," Sylvester Stallone's latest action which stars ten veteran action actors who were active during the 80s, did 9.5 million dollars in business this weekend. It has grossed a total of 82 million dollars in gross receipts since opening three weeks ago.

Rounding out the 10 most-popular movies at U.S. and Canadian theaters this weekend are:

-- No. 4: "Eat Pray Love," Sony, 7 million dollars this weekend, 60.7 million dollars over three weeks;

-- No. 5: "The Other Guys," Sony/Columbia, 6.6 million dollars this weekend, 99.3 million dollars over four weeks;

-- No. 6: "Vampires Suck," Fox, 5.3 million dollars this weekend, 27.9 million dollars over two weeks;

-- No. 7: "Inception," Warner Bros., 5.1 million dollars this weekend, 270.7 million dollars over seven weeks;

-- No. 8: "Nanny McPhee Returns," Universal, 4.74 million dollars this weekend, 17 million dollars over two weeks;

-- No. 9: "The Switch," Miramax, 4.65 million dollars this weekend, 16.5 million dollars over two weeks;

-- No. 10: "Pirahna 3D," Weinstein Co./Dimension, 4 million dollars this weekend, 17.4 million dollars over two weeks.