The big plot point of the final Twilight installments was Bella and Edward’s baby, so one would think that the director would want to make sure that the portrayal of the baby was convincing and accurate, which it eventually pretty much was.
But before that, it was THIS. A terrible animatronic baby that looks like something that would belong to a mentally unbalanced woman. It in no way resembles a real baby, and likely would have ruined the film even more than the cast and writing already had.
Enjoy the clip.