On the Documentary Channel, I just finished watching BOMBSHELL: The Hedy Lamarr Story (2017). - Produced by Susan Sarandon. This most beautiful woman was a Hollywood star. However, it is entirely unknown that this woman also "invented" and "patented" something called "frequency hopping" for which she never got a cent!!!!!! Now worth approx. $30 billion (if I remember correctly, I hope, lol) and integrated into all cell phones, wi-fi, GPS, and Bluetooth, it was originally "stolen" (back in 1955) and used in bombers during the Vietnam war and earlier... absolutely amazing and fascinating story of her life - how the Hollywood sexist machine looked at her only as a sex object - so sad.
There is a trailer, but here I have decided on a YouTube video that more accurately describes a synopsis of this documentary, called
The Brilliant Mind, wherein NewsHour Weekend's Megan Thompson spoke to Alexandra Dean, director of the film:
Hedy Lamarr ...
There is also an article in the Guardian, if you prefer to read the review:
https://www.theguardian.com/film/201...susan-sarandon