I think that is cool
I have a few recommendations.
Definetly use video!
I say to add marquee, as you show each different game in your movie, fade in and out the marquee. Or even cooler, display a generic looking cabinet, as each year increments, spin the arcade cabinet around.
Speed it up! Say there was 1 game in the first year that your movie covers, as you get to 1984, show maybe two or three in the time that you displayed the game from '72.
There are several threads, some here, some in alt.games.mame about music that reminds people of the arcade (because that was what was playing there) perhaps instead of one long song...play snippets of songs.
Just a couple of thoughts. Just have fun with it.