But one thing does remain unanswered -- how did Caitlyn pick her name?
Surprisingly, he's cleaned up quite a bit even though he's currently filming the dirtiest role of his life.
As you've probably already heard, the Lawless star is having ACTUAL sex on camera for Lars von Trier's newest film, Nymphomaniac.
He shaved that beard and slicked his curly locks to the side as he posed with co-stars Stellan Skarsgard, Charlotte Gainsbourg, Mia Goth and Stacy Martin on the German set which is, of all places, in an elementary school.
Let's hope Lars is filming his actors doing the nasty in a much more appropriate setting!
[Image via AP Images.]