riefenstahl?

There's a well known picture from Olympia which shows a (pretty stunning) naked woman doing some physical activity. While this may not be that important, I was rather amazed to find that it's apparently Leni Riefenstahl herself :o in which case it's probably the most interesting cameo by a director you're probably ever going to see. It is her isn't it? (the imdb cast list certainly seems to indicate so)