They don't provide any direct means because they would prefer everyone use
their own proprietary encoding methods, READ "keep control".
That's why there's all kinds of small little omissions in their products,
e.g. can't create mp3's at higher bit rates, can't easily export email to
text format from OE, can't easily convert wmv files to avi, wma files to wav
etc. etc. etc.
Some of them are trivial to overcome, getting avi file format as an example
(although it does cost you some increased noise). However others are much
more difficult to "easily and cleanly" do, e.g. taking a bunch of email's in
OE and trying to convert them to "txt" format. The - use notepad to "create
new file", select and highlight one specific email and copy to clipboardl,
paste into file, save file, repeat ... is tedious. You can be damn sure it's
purposefully so to try to "lock down" customers.
Now before anyone says ... I know, dBeXtract does it ... sort of but far
from cleanly with well formatted text file as result. It's bare bones, get
info to text format and that's it. Note - the dbx file format seems more or
less undocumented, again purposefully I'm sure.
Many "long-time pc" users just avoid using many MS products specifically
because of this as they recognized the implications when the product(s)
first appear and choose to avoid the future problems.
In your case, just use another program to create the "movie". There's lot's
of choices out there at little to no cost.
And I wrote this inside OE6, I've made my choices