Supposedly the real Maria hung around the set, trying to get on camera. She was a real piece of work - it was the father that was the sweet guy.
There is a scene where she was a walk on.
I read that - even she said the father was the nice one...
“...There is a scene where she was a walk on...”
She was unrecognizable in the background. Why didn’t they give her a real cameo like being one of the faces on the bus? She was after all, Maria von Trapp, and a defender of the real life warm nature of her husband.