A Database Error Occurred

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 's 11') END WHERE user_id=1' at line 1

UPDATE phpbb_profile_fields_data SET pf_fav_movies = CASE pf_fav_movies WHEN "" THEN "Ocean's 11" ELSE CONCAT(pf_fav_movies,', ','Ocean's 11') END WHERE user_id=1