Upon Sam burning Rose's bones the same piece of red cloth falls down twice revealing that it was the same shot simply cropped on a second take.
Lisa's home phone number is listed as 1-616-555-0231, but 616 is only used for western Michigan, the area code in Lansing, MI is 517.
When photographs of Johnny's body are being taken, the actor's throat can be seen moving as he breathes despite the character being "dead".