Possibly no help whatsoever, but Windows can have any pictures in the My Pictures folder to be used as a screensaver so if you don't already have some images there, you could fill that folder with your hollywood greats.
It doesn't have to be the "My Pictures" folder - you can specify which folder to use. (Start> Control Panel> Appearance and Themes> Choose a screensaver. Select My Pictures Slideshow as the screensaver and go into settings to choose a folder and set other options. Instructions for XP, but most Windows systems are similar.)