Write SQL query to solve given problem: What is the MPAA rating for the movie with the character named "Peter Quill" in it?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T1.`MPAA Rating` FROM movie AS T1 INNER JOIN characters AS T2 ON T1.MovieID = T2.MovieID WHERE T2.`Character Name` = 'Peter Quill'