Movies with good plot twists

Here is a quick recommendation list of movies with great plot twists.

A good twist for me is one which makes perfect sense even during a second viewing, It is fairly clued, you feel like, "Why on earth did I not see that one coming? All the clues were there!", The worst ones are the ones where they say, It all was just a dream!! Or It was just an imagination/hallucination of Hero!! (There are some notable exceptions to this)

The clues were all there but the writer cleverly misled us. It is similar to how the magician misdirects us. Like Nolan had put it in The Prestige, we were not watching closely! It was right in front of our eyes but the writer managed to misdirect us and make us perceive things differently. When it is revealed in the end, it makes us go 'Wow!!'

Some of the most deliciously ironic/poetic twists that I have seen are the ones in TV shows -- The Twilight Zone and Alfred Hitchcock Presents. I Would highly recommend these 2 shows.

Some good movies with plot twists that I liked:
Memento
Primal fear
6th sense
No Way Out
Predestination
Planet of Apes
House of Games
Orphan
Saw
The Spanish prisoner
The game
The Prestige
The Visit
The crying game (British)
Pieta (Korean)
Incendies (Canadian)
The illusionist
The bird with crystal plumage (Italian)
Psycho
The Village
Unbreakable
The Others
Loft (Belgian)
The secret in their eyes (Argentinean)
Atonement (British)
Chinatown
The Conversation
Scream
Gone baby gone
Body Heat
The Body (Spanish)
Butterfly on a wheel
Matchstick men
Witness for the prosecution
Nine queens(Argentinean)
the best offer(Italian)
Les diaboliques(French)
Dark City
Another Earth
Following
Identity

Recommendations are welcome