Having recently inherited an uncle's large selection of silent films, I fell in love with silent diva Corinne Griffith. I managed to see four of her silent films (The Divine Lady, Black Oxen, The Garden of Eden, and Classified) and was totally astounded by her. We are very fortunate that talkies did not come in earlier, for we would have never gotten a glimpse at some great artistry. Many people claim that a great many silent stars were not good enough actors to survive in talkies. This is a shaky claim. Sound cinema and silent cinema are two totally different mediums. Acting techniques popular in the talkies would have not been effective in silent films. Hypothetically assuming that we had gone the other direction, from talking films to silent ones, it is quite legitimate to think that many talking stars would not survive in silent cinema: this is not, however, enough to claim they were not good enough at acting itself. Its just that they were not good at a particular type of acting. Case in point: Back Pay, a perfectly horrid vehicle for Corinne Griffith. It is stiff and stagey, poorly acted by all involved (especially the male lead), and preposterous. Griffith actually acts quite well in certain scenes, but not for the most part. She plays Hester, a woman who is board with her life and becomes the mistress of a big city magnate. She leaves her true love, Gerald, and when he goes blind in WWI, she realizes she loves him and decides to nurse him in his final days. Although remarkably short, (only about 50 minutes), the film drags on and one feels as if Gone With the Wind had played five times by the time its over. It is invaluable, however, as perhaps the best example of why some stars didn't make the transition to talking films. See it, you'll be happy you did just to get an idea of the times, but don't go out of your way.
Instead, see The Divine Lady, her best film, or The Garden of Eden, which has suddenly become easily available.