What is the MPAA rating for the movie with the character named "Peter Quill" in it?
MPAA rating = 'G' means General audiences; MPAA rating = 'PG' means Parental guidance suggested; MPAA rating = 'R'means Restricted; MPAA rating = 'X' means No one under 17 admitted
SELECT T1.`MPAA Rating` FROM movie AS T1 INNER JOIN characters AS T2 ON T1.MovieID = T2.MovieID WHERE T2.`Character Name` = 'Peter Quill'