Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE schedule (title VARCHAR, directed_by VARCHAR, film_id VARCHAR)
TABLE: CREATE TABLE film (title VARCHAR, directed_by VARCHAR, film_id VARCHAR)

### Question ###
What are the title and director of the films without any schedule?

### Accurate SQL ###

SELECT title, directed_by FROM film WHERE NOT film_id IN (SELECT film_id FROM schedule)