No one in town knows the mysterious dead man. He competes in the Halloween costume contest and wins. It is a complex costume. If he was from out of town, it is unclear how he knew about the contest with enough time to build the costume.
After the kids dump a bucket of water on Miss Dorothy, she walks back into the general store dripping wet; her hair clinging to her face. Brian follows her inside to apologize, and when Dorothy turns around to face him, suddenly her hair is set again, and her dress nearly dried.
Near the 40 min mark, the man Dr Mike is examining is wearing a gold wedding ring. The tradition of men's wedding bands did not start in America until World War I.
While the kids are talking around the picnic table during recess, the camera moves around to capture their conversation about witches. Just as a boy sits to join in the conversation, a dark shadow of the camera operator is obvious at the far left of the screen, and then reveals the tip of the boom Mic for a second.
Mr Bray said the flowers Dr Mike put on Abigail's grave were yellow button mums. Chrysanthemums are native to Asia, not Colorado. Besides the flowers were orange, not yellow, and were likely globemallow wildflowers instead.