CREATE TABLE table_204_667 (id DECIMAL, "year" DECIMAL, "film title" TEXT, "genre" TEXT, "cast" TEXT, "notes" TEXT)

which genre appears the most on this chart ?
SELECT "genre" FROM table_204_667 GROUP BY "genre" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "genre" FROM "table_204_667" GROUP BY "genre" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1