I have at long last emerged from the cutting room after wresting with a characterful video editor called Avidemux. My advice for anyone wishing to use this charming piece of software is to cut early, save often and RTFW (that's short for Read The Fascinating Wiki). All the same, I narrowly prefer it to iMovie.
The result is a five minute video which I fully appreciate is only of any real interest to close friends and family.
Just be grateful that you didn't have to sit through the unedited version. It's thirty minutes long and the music track gave ME morning sickness!