Table: film_1996
Columns: rank
title
studio
director
worldwide_gross

Question: What was the worldwide gross for the film directed by joe pytka?
SQL: SELECT "worldwide_gross" FROM film_1996 WHERE "director" = 'joe pytka'

Question: What was the average rank for the film directed by roland emmerich under the studio of 20th century fox?
SQL: SELECT AVG("rank") FROM film_1996 WHERE "studio" = '20th century fox' AND "director" = 'roland emmerich'

Question: What is the average rank for the film directed by michael bay?
SQL: SELECT AVG("rank") FROM film_1996 WHERE "director" = 'michael bay'