A new development on the casting for “The First Avenger: Captain America” has suggested that Marvel Studios’ option on possible leading actresses have narrowed down. Just days after Emily Blunt took herself out of the running, E! Online reported that Keira Knightley is no longer up for the part as Captain America’s girlfriend, Peggy Carter. There are yet details being shared behind the dropping out of the star of “The Duchess”. It is said, though, that her exit has placed British actress Alice Eve as the front runner for the part. Still, Eve who will be seen in “Sex and the City 2″ will face a competition from another British actress Hayley Atwell. Back in early April, Blunt has been reported to have passed on the chance to star as Peggy in favor of other projects. Recent report suggested that the Emily Charlton of “The Devil Wears Prada” turned down Marvel Studios’ offer since she is aiming to take on the role of Catwoman in the upcoming “Batman 3″. “The First Avenger: Captain America” itself has set Chris Evans as the title character, Sebastian Stan as Bucky Barnes and Hugo Weaving as Red Skull. “The Wolfman” director Joe Johnston will serve behind the lens, and production is expected to begin this summer in Europe for July 22, 2011 U.S. release. Source: CelebrityMania.com