CREATE TABLE table_6586 ("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 Burleigh Sullivan as the character?
SELECT "Length" FROM table_6586 WHERE "Character name" = 'burleigh sullivan'
SELECT "Length" FROM "table_6586" WHERE "Character name" = 'burleigh sullivan'