Figure it out how use it. I change the SQL query to below
SELECT
title.id,
title.title,
GROUP_CONCAT(genere SEPARATOR ' | ') AS genere,
title.`year`,
title.poster
FROM
title
INNER JOIN title_genere ON (title.id = title_genere.id_title)
INNER JOIN genere ON (title_genere.id_genere = genere.id)
GROUP BY
title.id,
title.title,
title.`year`,
title.poster
ORDER BY
RAND()
LIMIT 8