Transcript for One on One With the Cast of 'The Big Short'
"The big short" opens today. Big movie buzz. It already has throw golden globe nominations and features some of Hollywood's hottest stars and Chris Connelly spoke with the cast. Before "The big short" was a big film with all its stars playing Wall Street outsiders it was an acclaimed best-seller. It's such a great book but it's a very complicated subject matter. Reporter: Complicated enough to grasp the details of Michael lewis' epic account of the 2007 collapse of the housing Marc and harder for the director to make "The big short" into a people-pleasing Laffer but trying to follow Christian bale/. Before we started I'd call Adam and how is it going. He said, oh, my god, Christian bale is incredible and I'm going, oh, no. I mean, I'm in a movie with Christian bale. Are you kidding me? I'm such a -- You know, everyone had that reaction because the first two weeks were all Christian and the crew and all of us fell in love with Christian, stupidly I would tell these guys that and go, oh. Hang up the phone, oh, no. So grounded and specific and he's so collaborative and the footage looks beautiful. Steve was like remember when we did "Anchorman"? Reporter: Utterly transforms into Michael with a knack for high finance and a lack of communication skills. Have a very nice haircut. Did you do it yourself? What? What was the most important thing in telling Michael's story? Mike was very understanding of the need for license. I was very surprised how understanding he was of that. You want to stay absolutely truthful to him because he is such a fascinating character. Reporter: And Ryan gosling plays a deep on the inside cynic with an attitude as shark fin sharp as his two-piece suit. Just putting on that suit must have made you feel like I got this, right? I did and more putting on the wig I felt like, oh, I got this then I walked out of the trailer and saw Steve and Steve went, never do this again. Reporter: For "Good morning America," Chris Connelly, ABC news, Los Angeles. It's a terrific movie. Really, really good movie and in
This transcript has been automatically generated and may not be 100% accurate.