Part of the upgrades was a movie to be shown in the museum. They engaged Charles Guggenheim to direct and Len Cariou to narrate. They needed actors (not extras mind you) for the movie and my friend's mom asked some of us and I agreed.
The movie ended up winning an Oscar that year for best short documentary. The movie is shown in the museum to this day, and my friends and I were all credited actors in it.
At my friend's mom's viewing, I told him that when I started dating my wife, I was able to impress her with the fact that I was an IMDB credited actor in an Oscar winning movie, and she thought I was BS'ing until I showed her. I told my friend that I would always be in debt to his mom for that opportunity.
Looking at the cast list, it seems Cariou was the only “known” actor, and it was only his voice. What a great adventure it must have been to take part in that production!