Love the name! It's got everything: unusual but still indisputably a "real" name; simple clear sound; straightforward spelling. I have heard of the Hitchcock movie, of course, but never seen it: wasn't it Grace Kelly playing a glamorous criminal? Oh... I've just checked IMDB and I see it's darker than that...
But still: I think most people would agree the name is a great one, and would think that's why you'd used it!