Term for musical arrangement of more than 5 themes?

What is the term for a musical arrangement of music that consists of more than 5 short themes? I've heard that a medley usually has 3 themes, but what would the term be for a song that has more than 5 themes from like a movie, or video game? And what if the length of the themes were fairly short? I also heard of a suite, but I'm not sure if suite would be the right term either.