yea i think the shadow in that question has a sort of negative connotation. you need to say what s2ophie said about how both are works of their own right, reflecting their contexts etc., by studying the process of transformation we gain insight etc.
something you could talk about is how important hierarchy is in Emma, while in clueless, this is replaced by materialism/appearances. (different context, allow comparison) and all that schmuzzle. try comparing characters, or scenes, or maybe themes.