In addition to Erica's fabulous resource (using Quicktime Pro), geethree.com has a Slick product for doing Picture-In-Picture, as well as other neat effects. Slick Transitions and Effects Volume Four - Hollywood Edition Matte-tastic Superimpose logos or any matte onto video. VidMix Finally,blue screen technolgy comes to iMovie. This plug-in lets you merge two video sources using color key, brightness orcutout. Picture in Picture Two video sources with one in a positionable and sizeable internal box. Split Screen Two video sources split and combined or one or both squeezed. SlickMotion A stand-alone application that creates high quality pans from high resolution photos. A must for documentaries or any film using many stills. Retains hi-resolution of imported photos! Great value $49.95 (U.S.) as a digital download (CD also available) Save when buying a Slick bundle. System requirements: iMovie 4, iMovie 3, iMovie 2.0.3 or later Mac OSX (including Panther 10.3), OS9 Quicktime 5 or later Macintosh with G4 processor 10MB available disk space