He has, fairly or unfairly, earned a reputation for being difficult to work with.And it's something Sean Penn himself alluded to when he accepted the Best Actor Oscars for Milk at the 2009 Academy Awards, telling the audience: 'I did not expect this...
and I want it to be very clear that I do know how hard I make it to appreciate me, often.'On Wednesday, Howard Stern asked the actor about it and Penn, 59, acknowledged that he has butted heads with directors who he believed did not deliver on what they had promised him.
Read more on dailymail.co.uk