Consider the scene in isolation from the rest of the film. You may watch the entire film if you wish, but you will be graded on the precision with which you are able to describe the sequence and the quality of your ideas about its possible meanings.
Your task, then, is twofold: 1) to describe what you see as clearly as possible (you do not need to use filmic terms); and 2) to explain what it might mean (literally, thematically and symbolically).