Play the movie. Don't click any of the buttons on the stage—just click Play to play the movie.
Playing the movie ensures that the new script is read into memory. Now you can see that your script works. In the Watcher window, you can see that the global variable contains all the names and code information from the Location codes field. With this information in memory, Director now has access to this information and can use it throughout the movie.
Using the Watcher is a good way to make sure that a variable or simple expression holds the value you expect.