Re: Most obvious plot "twists" (spoilers)
The Crying Game, new that was a man as soon as I saw him/her
Batman Begins and Rises, knew the twist there.
About the only movies that really got me were Fight Club and Sixth Sense.
Iron Man Three - May 3, 2013
Thor: The Dark World - November 8, 2013
Captain America: The Winter Soldier - April 4, 2014
Guardians of the Galaxy - August 1, 2014
The Avengers 2 - May 1, 2015
Iron Man will return