It looks like your ‘movies in added collection’ collection doesn’t have any records. Have you checked that? Are you able to share a quick screen recording showing us your setup and app preview? You can use loom.com.
Additionally, is this something you’re trying to do? : https://drive.google.com/file/d/19m52SQ9v3gY0vPa7ip7RsXRWl9qmz6IH/view?usp=sharing (only if each user doesn’t have the option to edit, otherwise you should use another collection to store a separate record for each user)
Thank you and have a great day!