The hidden letters behind "The King's Speech"

What's it like to hold history in your hands? Scott Pelley had that chance, reporting on the Oscar-nominated film "The King's Speech." Hear from Colin Firth and Mark Logue, whose grandfather's friendship with a king made history.

"Get me re-write!" It was a chance discovery that caused panic on the set of "The King's Speech." The movie, about a stuttering King George VI and his Australian born speech therapist Lionel Logue, was about to begin filming when Logue's grandson Mark happened upon a treasure trove of actual letters between the two men.

Watch Scott Pelley's report.

In the end, a small part of the letters made it into the movie but there was so much more between the king and Logue. "60 Minutes Overtime" takes you inside the improbable brotherhood and the heartfelt correspondence between a commoner and a king.