All of the code are in place; you understand multithreading and how callbacks can be used in a multithread environment. You saw the defer statement and how it can be used to execute a block of code at the end of a scope. Yet, if you build and run your app and add a new movie, the rating isn't actually displayed.
The following are the three reasons why this is happening:
We'll solve these issues in order, starting with the table view cell.
Currently, the movie table view displays cells just have a title.
UITableViewCell has a built-in option ...