Audrey Hepburn says her current role as UNICEF goodwill ambassador is one she's taken nearly half a century to land.

The 62-year-old actress was catapulted to fame in "Roman Holiday" and after that acted in many films in the 1950s and '60s. She left the spotlight to raise her two sons.In the May issue of Vanity Fair she spoke about UNICEF and a childhood that gave her an affinity for children in need. Hepburn was born in Belgium, but the family moved to the Netherlands, where she endured the privations of World War II.