CREATE TABLE table_6587 ("Release date" CLOB, "Length" CLOB, "Director ( s ) " CLOB, "Character name" CLOB, "Character type" CLOB, "Leading lady" CLOB)

What is the length of the film with the character type being a milkman turned prizefighter?
SELECT "Length" FROM table_6587 WHERE "Character type" = 'milkman turned prizefighter'
SELECT "Length" FROM "table_6587" WHERE "Character type" = 'milkman turned prizefighter'