Lionsgate and Millennium Films' The Expendables 3 opened to a muted $875,000 Thursday night from more than 2,200 locations. While on par with the $870,000 earned by The Expendables and ahead of the $685,000 grossed by the sequel, the threequel rolled out at 7 p.m., compared to midnight for the first two films. To boot, The Weinstein Co. and Walden Media's new YA film adaptation The Giver wasn't far behind, pulling in $750,000. Expendables 3 , featuring a multigenerational lineup of action stars, is expected to take in $20 million to $25 million for the weekend, a series low. In addition to potential franchise fatigue, a pristine copy of the film leaked on the Internet is likely to hurt grosses, much like what happened when X-Men Origins: Wolverine was pirated before its release in 2009. The weekend's other new offerings are the R-rated comedy Let's Be Cops , which got a jump on the competition by opening Wednesday, and The Giver. A trio of specialty films