Hi,
That's pretty.
If you have ever done any film, and specially editing, you are familiar with this.
On Super 8, I think I had 24 frames per second. If you slow down the films, you can see this, but you also see the break in each picture. Film, specially in the early days, was just picture after picture after picture. This is not as clear or as visible today.
The part that is helping, and was started around the late 60's was when some of the film stuff started getting on to special effects and such, most of which were the beginnings of what became known as "digital" ... you know ... the stuff that we hate so much!