You can …
A) gotoAndStop at a blank frame in the movie
or
B) Use Javascript to hide a DIV tag that houses your movie
if you aren’t up to date on Javascript then your easiest and best bet would be to use [AS]on(release){
gotoAndStop(emptyFrameNumber);
}[/AS]
Where emptyFrameNumber is the frame number of the empty frame you have set aside.