Christmas Keepsake

It was a nice enough movie and I liked all the actors but right from the get go it bothered me how little they did to make finding the time capsule real. Supposedly, one young girl hid it in (I think a neighbors) back yard and years later another young girl, who had just moved into the house, found it under a few inches of snow. It wasn't even buried. So, all the people who had lived in that house over the years never saw it? Also, it was a tin. That would have been rusted out in a year. Even the papers inside the tin looked brand new. It just seems no effort was put into making any of this believable.