A narration within a narration is called a "nested narration" or a "frame narrative". This is a storytelling technique where one story is told within another story.
View page
The cast of The Unfinished Journey - 1999 includes: Maya Angelou
as herself Bill Clinton as Narration Ossie Davis as Narration Ruby
Dee as Narration Edward James Olmos as Narration Sam Waterston as
Narration