Hello: I've successfully created a slideshow and my last slide is a very short video containing dialogue. However the entire slideshow preceding the final video slide contains music which I incorporated into it. 

My problem is that when the final slide with the video and dialogue begins to end my movie, the last couple of seconds from the song in the slide preceding it carries into the video slide and disturbs the dialogue. 

Is there a way I can eliminate that couple of seconds of music from the last slide containing the short video so it doesn't cut into or overlap the dialogue contained in the short video slide?

Thanks.