Write SQL query to solve given problem: How many films did actor Daryl Wahlberg appear in?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.film_id) FROM film_actor AS T1 INNER JOIN actor AS T2 ON T1.actor_id = T2.actor_id WHERE T2.first_name = 'DARYL' AND T2.last_name = 'WAHLBERG'