CREATE TABLE table_204_7 (id DECIMAL, "#" DECIMAL, "date" TEXT, "film" TEXT, "gross" TEXT, "top ten places" TEXT)

which film was the highest grossing ?
SELECT "film" FROM table_204_7 ORDER BY "gross" DESC LIMIT 1
SELECT "film" FROM "table_204_7" ORDER BY "gross" DESC NULLS LAST LIMIT 1