For one thing, you won't find something labeled "The Ken Burns Effect" in iMovie I don't think except for a checkbox in the preferences window. That is just the name Apple gives to the effect of panning and zooming across pictures in a slideshow. You find the effect by just going to your photos tab and then as you add your picture it should move and zoom your picture automatically and allow you to set the start and end point.
As for the other effect, you need at least Final Cut Express to pull it off, though it is much easier to do if you have Shake, After Effects, or the new version of Motion. If you have any of those, I can maybe make a quick tutorial for you.
P-Worm
As for the other effect, you need at least Final Cut Express to pull it off, though it is much easier to do if you have Shake, After Effects, or the new version of Motion. If you have any of those, I can maybe make a quick tutorial for you.
P-Worm