CREATE TABLE table_65112 ("Title" TEXT, "Series" TEXT, "Director" TEXT, "Production Number" TEXT, "Release date" TEXT)

What is the Series of the Filmography with a Production Number of M-4-15?
SELECT "Series" FROM table_65112 WHERE "Production Number" = 'm-4-15'
SELECT "Series" FROM "table_65112" WHERE "Production Number" = 'm-4-15'