Well, the thing is, it's apparently Brad Pitt's idea to be making this film in the first place. Seems like his heart is set on it (this is just from what I read once - can't remember where.) He'd be like, producing it and starring in it. So yeah, it seems to me he's into Buckley.
But the mother was against him playing her son for whatever reason. But maybe she changed her mind?
I really don't mind Brad Pitt, either - but he isn't exactly the greatest actor that's for sure (I had wished he do a better job than he did in Troy). And somehow, I just cannot picture him playing as Jeff. But then again, to compare; Anne Rice was against Tom Cruise playing Lestat - said there was no way he's right for the role or could pull it off. Turned out she admitted how wrong she was, and his role as Lestat was perfect. And dammit, I agree with her. So yeah, who knows how things can work out...by any luck, it could happen for the Buckley movie. *one can only hope*