Emily Blunt was reportedly rejected by UNICEF after it decided she wasn't famous enough to become one of their celebrity ambassadors.
The Devil Wears Prada actress was courted by the London office of the United Nations Children's Fund but they are said to have withdrawn their request to work with her after executives in New York vetoed the appointment.
A source told MailOnline: "UNICEF was keen to court Emily and made contact with her.
"She's a big name in British cinema, glamorous, and very much on the rise after winning some big accolades, so she seemed to be a perfect addition.
"It's a big deal to be asked, and Emily's people were keen to get her involved. But all of the celebrities in the list have to be signed off in New York and some of the senior management didn't feel she was enough of a star, so they've gone cold on her.