Here is a slow-motion music video using 50 frames per second. What we did was shoot the video at regular pace using 50 frames per second instead of 25 per second, but in order for our actress to mime the song at the same pace as it was playing, she had to mine it twice as fast as it actually is. Then once we had that, we slowed the video down so ti appeared to be slow motion, but the miming to the song was now at the same speed/pace as the actual song. The reason we used 50 frames instead of 25 is so once we slowed it down it would run smoother than if it only used 25 frames per second.