Movie Copycats

The following list is a list of different movies that are similar to eachother with familiar plots, characterizations, etc.

List of movie copycats
Halloween & Friday The 13th

Scary Movie & Shriek If You Know What I Did Last Friday The 13th

Peeping Tom & Psycho

Paul Blart: Mall Cop & Observe And Report

CAN SOMEONE PLEASE LINK THESE MOVIES TO THEIR ACTUAL WIKIPEDIA PAGE!