Harvey Milk's actual bullhorn was used.
The actor playing Richard Socarides is the real Richard's younger brother, Charles Socarides.
Rob Reiner plays David Blankenhorn, a defender of Proposition 8. In real life, Reiner co-founded the American Foundation for Equal Rights for the purpose of challenging Proposition 8 in court.
Based on Cleve Jones' 2016 memoir of the same title.
In episode two the movie Fame was mentioned and how a gay character in the movie was played by a straight actor. Michael DeLorenzo who plays Jose Sarria was a principal dancer in Fame. Paul McCrane also played a gay character in Fame.