Well, I did find that comment, but it was about a different film, I thought perhaps she was talking weird b/c she was trying to have a Southern US accent. Maybe she does have a speech impediment. There's nothing wrong with that, I'm just curious.
She spoke clearly in her interview, but maybe she got some speech therapy in the past 20+ years.
The thing that was really weird to me wasn't that she kinda lisped but that she also had that kinda hollow/flat, atonal voice/weird inflections like a deaf person.