To finalize and share a project to YouTube from iMovie, select "Finalize Project" to indicate editing is complete. Then, select "YouTube" and enter your account credentials when prompted. Click "Next" and "Publish" to upload the screencast to your YouTube channel, where you can sign in to view it after iMovie confirms the upload is finished.

1. How to finalize your project and
share it to YouTube

2. When you are finished editing your
screencast, the next step is to finalize your
project.
Finalizing a project tells iMovie that you are
done editing your movie/screencast.

4. Select Finalize
Project.

8. Select YouTube

9. Type in you
Account and
Password.
Click on Next.

10. Click on Publish.

11. After you Publish your screencast, iMovie
will let you know when your screencast is
shared to YouTube.
Sign into YouTube to view your screencast.