I watched the movie. It was well acted by both men, Jeremy Strong portrayal of Roy Cohn made me want to do research on him. Especially his involvement with the Rosenberg trial and McCarthy

There's no left or right leaning bias IMHO. It's about Donald's relationships with Roy Cohn, Ivana, his brother Fred and his parents. I read Mary's book, the movie pretty much shows what she was telling. Heck, I don't like the guy, never did, however, he has never hid who he was. Folks just chose not to see it.

While it's not a documentary you will understand why DT is the way he is.