def METHOD_NAME(genre, discussed_movie_ids=None):
    discussed_movie_ids = discussed_movie_ids if discussed_movie_ids is not None else []
    # let's convert genre from `criminal` to `Crime` (standard IMDb genre)
    for capitalized_genre in GENRES:
        if genre.lower() in GENRES[capitalized_genre]:
            genre = capitalized_genre
    # randomly pick up not discussed movie
    if RECOMMENDATIONS.get(genre, []):
        # because in RECOMMENDATIONS file imdb ids are started from tt, but in our case we store only digits
        available_ids = [pair[0][2:] for pair in RECOMMENDATIONS[genre]]
        return get_not_used_template(discussed_movie_ids, available_ids, any_if_no_available=False)
    return ""