Reporter: It's the eternal question for every actor. Can I conceal myself for ever more? Reporter: And the transformation from this to this is no easy feat. In this year's films, the costume designs... See More
Reporter: It's the eternal question for every actor. Can I conceal myself for ever more? Reporter: And the transformation from this to this is no easy feat. In this year's films, the costume designs have their own distinct roles. Something that ruth carter, famous for films like "malcolm x" and "amistad" knows firsthand. How big a role do caostumes play in the look and feel of the movie? Many actors say they don't get into character completely until they have their costume. Reporter: A complete metamorpho metamorphosis. Ruth's attention to detail have earned her the respect of countless celebrities, even oprah, for her upcoming film, "the butler." She wanted to instagram right away. And the director would say to me in one ear, don't let her instagram this costume. Reporter: What would an afternoon with ruth be without picture-inspired dressup. First up, "lincoln." A presidential and stoic transformation. Then, the hard task of channeling ben affleck in "argo." We have to do a cuff link. Reporter: And I was back to THE '70s. It was my "les mis" costume that had the folks in atlanta in for a parisian treat. You should know I don't work here. Perfect. Reporter: For "good morning america," cameron mathison, abc news, atlanta. They're coming back. There are actors who really need the outfits to get in character. It helps them very much. And you will see some of their finest work coming up. Oh, no. We're showing this now? No. Oh. Oh, stop. That is a sampling of what you'll get when we do our oscar special next week. And you can see the oscars, right here on abc, on sunday, FEBRUARY 24th, AT 7:00 P.M. Eastern, 4:00 pacific. Just in case sam in that blonde wig was quite enough. I don't know.
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