Here’s a short assignment I did for Shakespeare on Film last year:
https://docs.google.com/document/d/1ZsUu-0JVPKO7EGTSXFq3TJWJniqbwoCuwj5PPcU-Ul0/edit?usp=sharing
And here’s the clip my paper talks about (the part I focus on goes from the beginning until about 2 minutes in):
https://www.youtube.com/watch?v=LbpoG092YAQ
It’s a little different from your essay assignment, but should help you get a better sense of how to close-read film elements. If you have any questions about how to write about film, feel free to email me or leave a comment on this post!