I agree with the people that say that getting Fonda just to be there in Vinnie's bed (which ist basically what she did) was a waste of good money, that coulda have served to pay our beloved Mr Duvall to be in the movie. Or maybe get a REAL ACTRESS to play the role of Mary Corleone. So, it was a mistake.

(Not that it wasn't a pleasure watching her just wearing that shirt and nothing under it... She's HOT!!!)