Gregory Peck Stamp Delivers 'Mockingbird' Memories

The U.S. Postal Service debuted its Gregory Peck stamp as part of the Legends of Hollywood series this week. The stamp premiers just as a new documentary called Hey Boo also comes out. The film is about how To Kill A Mockingbird, which starred Peck, has influenced generations of Americans. NPR's Karen Grigsby Bates reports.