select title , rating from rental r
inner join customer c on c. customer_id = r. customer_id
inner join inventory i on i. inventory_id = r. inventory_id
inner join film f on f.film_id = i. film_id
where c.first_name = 'KATIE ' and c.last_name = 'ELLIOTT'
order by CASE WHEN rating = 'R' THEN 0 ELSE 1 END, rating asc