There's a few already made films out there that they could try to get ahold of too, Maybe add to them if they are willing to spend a little to show them.
The Legend of Stan Bowman was a good one. I believe Mike Thompson made this and owns it.
I'll watch this one on the Bettenhausens as well because on my few visits to IMS Gary B. was the only one hamming it up with fans, Talked to people like he knew em all his life (Some of them he probably did, But not me. he talked about indy mile and Terre Haute and well, My language