There are many scenes that we can see Sam(when ghost) having a shadow. OK, OK...So it was a low budget film, and they couldn't have taken care of THAT much! Most of the scenes was OK though, cuz Sam was mostly standing on a dark place where we couldn't notice the slip-ups. But what about the scene where he meets Whoopie Goldberg for the first time? After he comes out of Willy's house, he crosses the street to meet Whoopie. But while crossing the road the sun is shining so brightly and we can see sam's shadow under the the sun-light so clearly!