CREATE TABLE table_47927 ("Title" TEXT, "Series" TEXT, "Release" FLOAT, "Featuring" TEXT, "Writer" TEXT, "Director" TEXT, "Length" TEXT, "Release Date" TEXT)

What was the length of release 3.6?
SELECT "Length" FROM table_47927 WHERE "Release" = '3.6'
SELECT "Length" FROM "table_47927" WHERE "Release" = '3.6'