There are two ways to record a movie, 1) Use mouse and keyboard navigation 2) A saved tour. Recording from an existing tour is more reliable and produces a much better result.
1. Hide the sidebar - Go to 'View' then 'Sidebar', or click the Sidebar button to maximize screen space.
2. Be sure the Tour controls are off - or the Movie Maker option will be grayed out:
Close this box
3. Open Movie Maker - Go to 'Tools' , 'Movie Maker' (same on PC and MAC)
4. Select 'A Saved Tour' - From the dropdown, choose the tour you want to record a movie from.
Selecting a tour to record from
5. Select the resolution - 800x600 is good for YouTube, 1920x1080 is television or projection.
Selecting resolution
6. Set the frames per second - 30 FPS is a common choice.
Selecting frames per second
7. Select where to save the movie once recorded - Choose a location on your computer to save the movie file.
Browse for where to save the movie
8. Select Create movie - The second dialogue box of options will open.
9. Select Compression type - These codecs often come with editing software. Select one that will work with any other footage.
Selecting the compression type
10. Frames per second - Match this to the FPS you selected from the previous dialogue box.
Selecting frames per second
11. Record movie - Select record to start he recording.
Last step
Additional tips:
If you've been building your tour in Google Earth, the computer cache will fill up. Save your files and restart Google Earth for better movie recording performance
While Movie Maker is recording, try not to use other programs on your computer. It's a great chance to leave your desk and grab a coffee while the movie records.
The imagery or 3D buildings may flicker and look like it's freaking out but unless it stops moving entirely, just let it run.
If you select the wrong tour, and Movie Maker begins to record, be sure to reset the start to your desired location before restarting movie Maker.
If a movie fails, recording over the failed movie file has produced errors. Delete the old file, or rename the second attempt.
If you have a place where a movie fails consistently, try to modify the tour slightly. Moving a Placemark slightly or re-saving a view can help resolve anomalies.