Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_31 (length VARCHAR, character_type VARCHAR)
### Question:
What is the length of the film with the character type being a milkman turned prizefighter?
### Answer:
SELECT length FROM table_name_31 WHERE character_type = "milkman turned prizefighter"