The take-away from these examples? Book-ending your film with mirror shots or similar scenes is not just a cute visual effect. Rather, the story you have told in between these first and final scenes will make your audience reconsider the meaning of that familiar shot or setting the second time around and perhaps even contribute certain qualities or motivations to a character. It sounds obvious, but let’s mention it anyway; the final scene can determine the feeling with which the viewer leaves your story. Calling upon the viewers feelings from the opening scene can give the final scene so much more – shall we say – oomph?

h/t Screen Rant