I saw it last weekend. I did not know that Ford had to prevail against the consortium (A.L.A.M) that claimed the entire automobile was their protected patent.
Most of the show was on J.P. Morgan, Carnegie and Rockefeller. Those three amassed fortunes that make those of today's look like nothing. Though I question their (documentary's writers) method of valuing their dollars to today's dollars. They seem to use a factor of about 1000 when computing the big three's net worths.