Now I'm no expert on the old time film strips, but doesn't the film need an audio casset to go along with it? Or does the film make its own audio? I guess what I'm trying to ask is that when they spliced the film together, how did they get the missing audio? If its technical thing that I don't understand please tell me.

It's built into the film strip along the sprockets.

I believe there is an audio track on the film which is activated as the film goes through the projector which syncs with the images...

Hmm... wouldnt the audio for the film all ready have the sound for that part on it? Maybe its just magical film or something. =\

If we're nitpicking, I think the footage was digitally made to look like an old film! ;)

Does anyone recall setting up films in school?
For films, the audio was included with the film.
For film strips, there was an annoying 45 record or cassette tape that had a little "ping" when you needed to change the image.

Film contains an audio track.

Film strips ! Wow that takes me way back. Glad to know I'm not the only one that not only remembers what those were, but knew how to use them.

Big thumbs up for the school AV nerds (before we knew what nerds were)

I remember film strips...and the naps that coincided with them ;)