Using movie15 with LyX to insert movies in PDF output

[Gerard Ateshian]

Hi all,

Does anyone have experience using the movie15 package with LyX?  I  
would like to insert a movie in a document, and have it appear as an  
animation in the PDF output.  I followed the instructions at http://www.uoregon.edu/~noeckel/PDFmovie.html 
 and I am able to get it to work from a terminal command (pdflatex  
movie.tex), so that means I have all the necessary packages  
installed.  However, importing the sample movie.tex file into LyX  
produces a bunch of errors when issuing View->PDF (pdflatex).   
Alternatively, copying the necessary \usepackage commands in the  
preamble and the basic commands into an ERT box,

\begin{figure}[ht]
\includemovie[poster,
text=(Loading Circle-m-increase3.mp4)]{6cm}{6cm}{Circle-m-increase3.mp4}
\end{figure}

produces the single error

pdfTeX error (ext5): cannot open file for embedding.

Has anyone gotten movie15 to work with LyX?

Thanks,

Gerard

P.S. I am using LyX 1.5.3 on a MacBook Pro running OS X 10.5.1.  My  
TeX installation is texlive 2007.