iMovie ’11 can smoothly import video from camcorders, but with so many digital still cameras now shooting video as well, why doesn't the application recognize those clips, too? Over at Macworld, Jeff Carlson reveals how to bypass iPhoto and import movies directly into iMovie. follow link
Keyboard Shortcuts in Stacks
You aren't limited to using the mouse or trackpad to select items within a stack. Once you've clicked a stack to open it, you can type a letter to jump to the first file starting with that letter, or press either the Tab or arrow keys to move among the stack's contents. Press Return to open the selected item.
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Import Camera Videos Directly into iMovie ’11