Below Is A List Of The The Build Up To Phase 3:
Marvel Cinematic Universe
Phase 1: The Build Up To The Avengers
Avengers 1 Team: Captain America, Iron-Man, The Black Widow, Thor, The Incredible Hulk.
Avengers 1 Villain: Loki And The Chutari.
Iron-Man April 2010
The Incredible Hulk August 2010
Thor May 2011
Captain America: The First Avenger November 2011
The Avengers May 2012
Phase 2: The Effects Of The Avengers
Avengers 2 Main Team: Captain America, Iron-Man, The Black Widow, Thor, The Incredible Hulk.
Avengers 2 Sub Team: Falcon, War-Machine, The Winter Soldier. The Warriors Three.
Avengers 2 Villains: Crossbones, The Mandarin, The Enchantress, The Executioner, The Abomination.
Iron-Man 2 May 2013
Avengers Origins: Black Widow November 2013
Thor: The Dark World May 2014
Captain America: The Winter Soldier November 2014
The Avengers 2: The Masters Of Evil May 2015
Phase 3: The Accumulation Of Everything So Far.
Avengers 3 Main Team: Captain America, Iron-Man, The Black Widow, Thor, The Incredible Hulk.
Avengers 3 Sub Team: Wasp, Ant-Man, Quick Silver, Scarlet Witch, The Winter Soldier.
Avengers 3 Special Appearance Of Guardians Of The Galaxy In Climax.
Avengers 3 Villains: Thanos And The Chutari.
Iron-Man 3 May 2016
Ant-Man November 2016
Thor: Blood Oath May 2017
Captain America: The Wrath Of Zemo November 2017
Guardians Of The Galaxy February 2018
The Avengers 3: The Wrath Of Thanos May 2018