Was Julia Child really left handed?

My wife and I were watching a very old Julia Child cooking episode on YouTube when we noticed something interesting.  OK, I noticed -- she was oblivious.

This was an episode where Julia was extolling the uses of eggs in things like chocolate mousse.  The video alternated between face-on views and top-down, showing the whisking action when Julia was beating egg yolks and stuff like that on the stove.  I noticed the top views showed Julia using her left hand beating the eggs and whisking stuff etc.  But the face-on views showed her using her right hand.  Finally, I saw a top down view that showed several pots on the stove, and the arrangement was reversed between the top-down view and face-on view.

So, here's an interesting observation.  Maybe it's been noted before, but a quick internet search did not reveal any confusion about Julia's handed-ness.  I think the top-down views were done using a mirror, so the viewpoint was reversed.  Perhaps today's directors are more concerned about consistency from shot to shot so that doesn't happen now....maybe.

I would be interested to know if anyone else has noticed this in the old Julia Child episodes.