I’m writing a review of iMovie 4, and making all sorts of notes. Here’s a quick tip:
iMovie 4 features Timeline Snapping, which snaps the playhead to the nearest edit point with a little “snick” sound. You could enable this feature in iMovie’s preferences, but don’t bother. Instead, just hold Shift as you drag the playhead in the Timeline (this doesn’t work in the Monitor’s scrubber bar). Snick!