pic via Noel Fisher Twitter   Guri Weinberg (Stefan) blogs about working with Mackenzie Foy (Renesmee.)     "Mr. Guri…I made you a picture.", she says."No "Mr.", Mackenzie. We're co-workers", I tell her.She thinks for a second. She has been raised to respect adults…how does she handle me?"OK…Dr. Guri", she smiles.I dig that little chick.The name stuck and for the rest of filming, she called me…