No word yet on who gets the choice diva role of Dianne Feinstein, but her part had best steal the film. How could it not? The career-making footage of Feinstein telling the media about the assassinations is priceless. (Here's an old, somewhat moving NBC Nightly News report on that day in 1978, featuring Feinstein's announcement.)

A notorious method actor, we wonder how far Penn will go to get this part juuust right. Because, Sean? We're here for you, and we're gentle.

Read more about it here and here.