Re-filming (changes)

We were told by our teacher that a scene in our opening film wasn't effective enough as the bullies in our film weren't following the stereotypes of our characters, this is because instead of walking down the stairs we were seen walking up the stairs instead. We decided and planned to change that scene and to change it to us walking down the stairs instead, but unfortunately the lighting was poor when we were filming and decided to continue with the footage we had.