Quick guide to exporting a web-ready video file from iMovie '11 (to share on the web). For more details, see:
http://digitalwriting101.net/content/how-to-export-a-shareable-version-of-your-project-imovie-11/
4. Step 3
Choose a size and click Export.
Rough cuts: medium
Final cuts: large or HD
5. Step 4
Wait while iMovie prepares web-ready version.
The longer the project,
the longer the wait time
6. Step 5
Locate exported file and upload to web host.
Double-click to view in
QuickTime Player.
Your original iMovie project
file is still in iMovie, where
you can edit it further