A look at the glittering world of the early Hollywood movie industry.
The world's first superstars were the gods and goddesses of the silent screen.
But 75 years ago, the world's first "talking picture" - The Jazz Singer, starring Al Jolson - was released, and the world of the silent movies disappeared forever, along with stars who couldn't, or wouldn't, make the transition into the talkies.
However, many of these long gone silent stars were interviewed extensively before they died, and in this programme they describe the glittering world of the early Hollywood movie industry.
Interviewees include Mary Pickford, Lilian Gish, Hal Roach and Charlie Chaplin.