This is a little longer than I’d like, but it popped up in my recommendations, and pushes several buttons at once:
- The Bell System
- Lee Marvin
- The 1970s!
From 1970, “It Couldn’t Be Done”, a Bell System film about “impossible structures”, featuring Mr. Marvin and the 5th Dimension.
Bonus video: since we’re talking about what we can accomplish when we want to, “They Came To An Island”. From 1946, a documentary about the Navy Civil Engineer Corps (aka the Seebees).