At first I thought it might have been Curtiz directing her to do it as some sort of inside baseball type of thing but then I watched Call Me Madam tonight on TCM( filmed a year earlier) and she's doing it in that film too. Kind of endearing, in a way.
Occasionally Der Bingle would get drunk and come out of his dressing room naked and just stand behind the camera as if he were directing. It tended to throw off the performers.
I'm starting to think it was just a habit she couldn't shake, looking at the camera. I've spotted her in several films checking the camera lense, both in dance numbers and dialogue scenes.In the Mandy number, I assume it was on purpose but in other scenes she was just caught looking at the camera for a second. She was just always aware of its presence.
Whereas the other performers are playing to the "house", as it were, projecting outward from the proscenium to ourselves, the audience en masse, anonymously in our theatre seats, Vera Ellen goes a step further and truly breaks through the fourth wall and engages each of us personally with a knowing smile and a wink.
Perhaps it's the fact that it just isn't done that it takes us by surprise and her charm makes it work? I'd say that's the case for me. I love it! I always notice it when she does and I am delighted.
I never noticed how she does this until I watched a clip of this movie on YouTube and a few people mentioned it. Now that I do catchbit happening I just love her even more. She looks do happy when she's dancing I don't mind her looking at the camera....this is gonna sound so stupid but it's like she's looking at me.
Knowing she was so anorexic I hope that joy on her face when she's dancing was part of her whole life. She's SO skinny it's hard to think someone that thin led a happy life.