Problems

I have noticed in my video that one of my clips is a lot smaller than the others. It cuts from a full screen clip to a much smaller clip. I do not yet know if this will effect my grades but I am leaving the clip in for now until I have finished the rest of my video then I can look at my video and decide if it effects it much. This is hugely frustrating as it is not my doing that has caused this error as the clips for this section are off the same camera and have been converted in exactly the same way etc.