Write SQL query to solve given problem: List all the films that Karl Berr starred in and rated as PG.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T3.title FROM actor AS T1 INNER JOIN film_actor AS T2 ON T1.actor_id = T2.actor_id INNER JOIN film AS T3 ON T2.film_id = T3.film_id WHERE T1.first_name = 'KARL' AND T1.last_name = 'BERRY' AND T3.rating = 'PG'