For this week, we watched some movie clips about character dialogues. For close-ups of characters in conversation, the cameras are usually placed on the same side of the horizontal line, so that the audience will not be confusing with the characters, because the character always face to one direction during the conversation, if the camera across that line, the position that characters show in the scene will totally switch side, that makes the viewers confusing. This is called the 180 degree rule. This method is practical for shooting scenes with a small number of people, normally no more than three people. However, we also watched some examples that did not refer to this rule. It is used in scenes where many people appear. Cameras are distributed in all corners of the room to shoot people. Multiple angles, this also works, and will not make the viewer feel uncomfortable or confused. For the assignment1, I chose Harry Potter as a case to analyze, this is one of my favorite movies. Its setting, filters, and story background are all very beautiful. It is an irreplaceable work in my mind. In the process of revisiting this movie recently, I began to pay more attention to the setting of the scene, the method of shooting and other technical elements than the plot. I noticed this scene after just finished learning the 180 degree rule, there were scenes that violated this rule, so I analyzed it as a case.