Other mistake: When Darry is in the basement under the church, Darry is laying on the floor surrounded by a circle of sunlight appearing through the pipe. Then follows a series of cuts between Trish at the open end of the pipe, and Darry. Why do we not see a silhouette of Trish on the floor rather than a perfect circle of light?
Other mistake: When the Demon has just ripped the tongue out of the police officers head, and he has eaten the tongue, when he is finished he puts the head in the back of his truck. Where on earth did his truck come from?