How many English films have a duration of over 50 minutes and the cost of replacement are under 10.99?
English is a name of a language; duration of over 50 minutes refers to length > 50; cost of replacement are under 10.99 refers to replacement_cost < 10.99
SELECT COUNT(T1.film_id) FROM film AS T1 INNER JOIN language AS T2 ON T1.language_id = T2.language_id WHERE T2.name = 'English' AND T1.length > 50 AND T1.replacement_cost < 10.99