In the swimming pool scene, there is no one in the pool. The girl is knocked into the water, dunked and then torn in half. Then that same girl is running for safety. In addition there is also another body in the pool of a character who never existed.
In the next scene that same animation of a separate girl torn in half is used.
In the next scene that same animation of a separate girl torn in half is used.
A character tries resurrecting her husband with a Satanic ritual but uses a star of David rather than a pentagram. This is also shown in a demonic book.
A woman is hanged with Christmas lights and is seen hanging in the air, but a shot reveals her standing on a chair and swaying her body from side to side.
When a Christmas star is thrown at a character, the string on it is visible for multiple seconds.
The foam material covering the actor in the tree is visible in multiple shots.
The tree says it was "born in the woods," but it's an artificial tree a character took out of box earlier in the film.