Today is the 100th anniversay of the first intercontinental radio transmission, from America to England. Is there a good period drama movie about the events leading up to this momentous event?

I did find this website that talks about the invention of the radio
The Invention of Radio

Invention of Radio Celebrated in S.F. / 100th birthday exhibit this weekend

I think that some of these sites may have contacts you can ask about it

Youtube does have info on it too Invention of Radio - Reginald A. Fessenden Part 1.wmv - YouTube

Guglielmo Marconi and the invention of radio - YouTube

And here is a dogpile search of movies about invention of radio
movies about radio invention - Dogpile Web Search

I really hope it helps