Lists by jetr-nsef
Psychological Thrillers &
Master Mind Plans &
Conspiracy & Secret Agent & Out of the box & Weird.
Simply the criteria is that these movies will take a little bit more time to understand the plot compared to Average movies. Or You won't have a single clue until the very end till you see the last scrolling credit scene where you start to Google for Answers or beat the sh*t out of the Screen you just watched while scratching your head..
...may be yelling "WTF did I just SEE!!"