There is a cable show "The Food that Built America" where they do discuss the candy bar battles of the early 20th century, and specifically the Mars family drama. It's not to the production level of an HBO show, but pretty entertaining nonetheless.

The Acquired podcast covers the full family history https://podcasts.apple.com/us/podcast/mars-inc-the-chocolate...

It makes you wonder how many companies were sold to private equity to avoid having to leave control to a family member. I know of a very large company that was until recently family owned, and the kids work as executives in the company, and yet it was sold to private investors.

I have also wondered what sort of dramatizations could come out of Mars, Inc, though I also wonder if there are weird classified twists that won't come out easily. Or at least if you were writing the fictional dramatization there's a rich room to play with the idea of what was really going on in that Chocolate Factory. With Mars, Inc. a private family company headquartered in McLean, VA, it's almost hard not to imagine some complicated history with the CIA as well. The UK branch spin off sounds like a reverse Kingsman/Statesman plot if you assume some spycraft in the company's history.

(Rival Hershey's ties to Pennsylvania history/culture similarly leaves ideas for National Treasure-style conspiracies in the chocolate world in the early history of control over the national identity.)

Free silly plot ideas for Hollywood or a graphic novelist hoping for Hollywood adaptation opportunities.