Angels in America was made into an opera – crazy. Read about it here.
When Tony Kushner married his boyfriend, Mark Harris, it was the first gay marriage to be announced in the New York Times "Vows" section. Read it here.
Kushner pokes fun of Steven Spielberg at the end of Millennium Approaches, but he later worked with Spielberg on the film Munich (source).
A recent Off-Broadway revival of Angels starred Zachary Quinto as Prior Walter – that's right, Sylar of Heroes and young Spock from the new Star Trek movies (source).