Table: filmography_harold_lloyd
Columns: release_date
length
director_s
character_name
character_type
leading_lady

Question: What is the length of the film with Burleigh Sullivan as the character?
SQL: SELECT "length" FROM filmography_harold_lloyd WHERE "character_name" = 'burleigh sullivan'

Question: What is the length of the film with the character type being a milkman turned prizefighter?
SQL: SELECT "length" FROM filmography_harold_lloyd WHERE "character_type" = 'milkman turned prizefighter'

Question: What is the character name that has phyllis welch as the leading lady?
SQL: SELECT "character_name" FROM filmography_harold_lloyd WHERE "leading_lady" = 'phyllis welch'

Question: Who directed the film that had phyllis welch as the leading lady?
SQL: SELECT "director_s" FROM filmography_harold_lloyd WHERE "leading_lady" = 'phyllis welch'

Question: What was the character name for the film with a release date of July 29, 1938?
SQL: SELECT "character_name" FROM filmography_harold_lloyd WHERE "release_date" = 'july 29, 1938'