I think I remember seeing a quick shot of the cronologically older and therefore younger Benjamin Button in a trailer for the movie. I can't find this anywhere now. It seems logical that a scene like this might have been shot. Benjamin starts small and wrinkled and grows bigger and younger. When he dies he should be giant (adult-size) baby, fetus, or cell. Was there ever a scene showing him in this state? Did I imagine seeing it?
There was this scene with a baby where the girlfriend of Benjamin Button was sitting on a chair and holding the baby. She looked very sad. The baby's eyes were closed.