Write SQL query to solve given problem: Indicate the release date of the film The Lion King directed by Roger Allers.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.release_date FROM characters AS T1 INNER JOIN director AS T2 ON T1.movie_title = T2.name WHERE T2.director = 'Roger Allers' AND T1.movie_title = 'The Lion King'