What are the last updated date for English film titles that were released in 2006?
the last updated date refers to last_update; English is name of language; released in 2006 refers to release_year = 2006


SELECT DISTINCT T1.last_update FROM film AS T1 INNER JOIN `language` AS T2 ON T1.language_id = T2.language_id WHERE T2.`name` = 'English' AND T1.release_year = 2006