Just saw it. Its a recording of Bale going off on his cinematographer because he walked infront of the camera during a shoot.
Bale goes off for almost 5 minutes to this director and demands he'll quit if the guy doesn't get fired. He curses, screams, fbombs, ingores requests to calm down, etc. Aparently the guy who he was yelling at keeps apologizing and Bale continues to grow more agressive. Listening to it, it reminds me of those guys who get all brave who bark and beat the chest? And the more you try to restrain them the more they get louder?
Honestly he sounded like an absolute BITCH doing all that meaningless screaming. IMO, Bale deserved to get back handed. No way would I let anyone get in my face like that after a certain point.