SUPERHERO film "Captain America: The First Avenger" got off to a solid start at the domestic box office Friday, grossing $25.6 million, according to one rival-studio estimate. The first-day total put the $140 million Marvel film on pace to meet opening-weekend projections of over $60 million. The PG-13-rated movie, which stars Chris Evans and was directed by Joe Johnston, opened in 3,715 locations in the U.S. and Canada, most showing it in 3D. One other film opening widely this weekend, Sony R-rated romantic comedy "Friends With Benefits," grossed $6.8m Friday. That put it off the pace to meet pre-release projections of just over $20 million. Justin Timberlake and Mila Kunis star in the $34 million comedy, which was directed by "Easy A's" Will Gluck. Meanwhile, coming off the biggest opening ever, Warner's "Harry Potter and the Deathly Hallows, Part 2" dropped 91 percent week-to-week to $14.6 million Closing out the Summer of the Lesser-Known Super Hero, Paramount and Marvel will debut "Captain America: The First Avenger" in 3,715 theaters this weekend.Agencies