Write SQL query to solve given problem: What is the name of the production company that made the most movies?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.company_name FROM production_company AS T1 INNER JOIN movie_company AS T2 ON T1.company_id = T2.company_id GROUP BY T1.company_id ORDER BY COUNT(T2.movie_id) DESC LIMIT 1