A high quality version of this just got posted to YouTube. If you’ve never seen before I’d highly recommend. I thought it was so well done for its time, and Ernest Borgnine was great as Lombardi.
Description (IMDB): https://www.imdb.com/title/tt0186300/
Movie (1 hour long): https://www.youtube.com/watch?v=na5jZ7_BB4I