Ewan was on CBS This Morning program this morning. Nothing revolutionary was revealed. He talked about why he took the role, and apparantly, he had to consider it long and hard. He took it mainly so his children could see it (since they really can't see any of his other films yet).
In reference to playing a younger Alec Guiness, he said its an honor to step into the role, which he says is a landmark role in film history.
He praised Hayden and Hayden's acting abilities and said he had a lot of fun working with him.
He also revealed that he's really looking forward to the big battle in Episode III between the two of them.
Bryant Gumbel said that later in the week, Hayden will be on and next week, Natalie Portman and George Lucas.