The "rabbit" in the woods looks like Frank.
Harry warns Acki not to watch his video. Acki says "What, if I watch this I'll get a call that tells me I'll die in 7 days?"
The puppet character is styled after the killer's puppet and named "Jigsaw".
The title theme of the movie gets played and one of the characters is named after 'Michael Myers'..
When Paris becomes a zombie the title theme of the series gets played and she behaves like the girls in the opening credits of the series.