Here is an explanation of how I made the movie:

You first make anaglyph stills by making left and a right views and then
merge them into an anaglyph movie. I used the Mac application
StereoPressDV1 for this.

When you have chosen the view in Google Earth that you want to "film"
you start by adding a placemark for the start (left) point and label
that L1. (Everything will be much easier if you choose a view in a straight
south-north direction).

Then move the view slightly to the right and add a placemark for the
right start point (label it R1). It is best to move by altering the longitude in
"Edit->Advanced->View" for the placemark.

Then go back to L1 and take a snapshot of the view with a screen dump
program. I used SnapzPro. Then take another snapshot from R1.
Merge these two pictures to an anaglyph picture. I use the application
AnaglyphMaker for Mac.

If the picture isnt good you have to test another location for R1.
Trial and error until you are satisfied.

Now you choose the end point for the movie. That point shall be in
straight North position from the start point. The reason is that you
then dont have to alter the latitudes for start and end points.

Label the end point L75. Move slightly to the right and put a placemark
for R75 there.

Repeat the test with taking stills for new anaglyph tests until you are
satisfied.

As you will notice there will be different differencies between the
longitudes if you compare L1-R1 with L75- R75.
In my movie the difference is 0,0007 degrees. So when you go from R1 to
R75 the longitude have decreased 0,0007 degrees between L and R.
Therefore you have to divide 0,0007 with 75. Call that value X. (More
about this later on)

Now you have your starting and ending points for the left and right movie.

I first tried to use the "Play Tour" command and capturing the left and
right video tracks with SnapzPro. But it was impossible to get the two
video tracks in sync. So it ended up in using "The Hard Way".

(It may be possible to use Making Movie Module for GE Pro. I do not
know.)

I had decided to make a 5 seconds long movie with 15 frames/second.
So each movie track had to have 75 frames.

Now it is time to place placemark L2.

First compare the "Range" in "Edit->Advanced->View" for the placemark
between L1 and L75. Divide the difference with 75. Now you know how
much you shall move the locations beetween each placemark you place
between L1 and L75 and R1 and R75.

Subtract that value (Y) from the range value for L1 when you put L2 in
place.

As you have chosen to travel in south-north direction you dont have to
alter the latitudes between placemarks for the Left movie.

Than move ahead by subtracting Y from L2 and place L3.

Repeat in the same way until you have reached L75.

Now it is time to place placemarks for the Right movie.
You move ahead with the same value for Y. But now you have to change
longitude for each placemark.

We have earlier calculated the difference in longitude between two
placemarks to X. So now you have to subtract X degrees from each new
placemarks longitude compared to the earlier placemark.

Place all placemarks R1 to R75.

Now go back to placemark L1. Take a snapshot of the screen and save the
picture (as a .pict) in i a Folder labeled LEFT. Save the picture as L1.
Repeat until you have saved pictures L1 to L75.

Now start all over with the Right track. Save the pictures as R1 to R75
in a folder labeled RIGHT.

Now you can quit Google Earth.

Open QuickTimePlayer. In "Archive" chose "Open Picture Sequence" and
save all pictures in Folder Left as Left.mov

Do the same with the pictures in folder Right and save as Right.mov.
Then open StereoPressDV1 and merge the two movies Left.mov and Right.mov
to a "colour anaglyph movie".

Thats all ;-)