Which movie originated in Bulgaria?
CREATE TABLE table_15020 (
    "Country" text,
    "Film title used in nomination" text,
    "Language" text,
    "Original name" text,
    "Director" text
)
SELECT "Film title used in nomination" FROM table_15020 WHERE "Country" = 'bulgaria'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which movie originated in Bulgaria? ### Input: CREATE TABLE table_15020 (
    "Country" text,
    "Film title used in nomination" text,
    "Language" text,
    "Original name" text,
    "Director" text
) ### Response: SELECT "Film title used in nomination" FROM table_15020 WHERE "Country" = 'bulgaria'