Planning - Problem!!

We have had a few problems with our actors, we were planning to film our Performance part of our music video today and everything was fine, until the bus which our actor had to take to arrive at the school was cancelled and had been taken in for service. From this we have decided to change the date of filming to tomorrow (friday 2nd december) but this will be a problem as we will have limited time to film, we feel that we will be able to get most of it done and if anything has not been filmed by this time we will have to arrange another date to film the parts that we feel that we need.