Cheers. I think I got way too carried away with synching the video cuts and Picture in Picture to the beats of the music though. Used it as a way of practising in Premiere Pro though, so I tried to do a different "technique" for every section. I like the one where the girls waving her hand and the picture toggles from forward to rewind best
One thing that didn't work which I thought would be the best was to zoom in at each beat on someone or something. For some reason it just looked odd. I guess i could have tried taking a few frames out at each beat too.
I'd also realised on my previous video and watching other movies with PIP that when clips "cross over" one another, it looks best to keep a black bar seperating one clip from another. If you don't have that bar when the clips are moving it just looks wrong. Check out the Leeds video to see what I mean: I split the screen into 3 segments, then expanded the middle segment over the top of the left and right thirds to cover the whole screen, whilst maintaing the black bars whilst the picture expands.