Ant-Man and the Wasp was actually the 20th film in the MCU. This all started in 2008 with Iron Man, then The Incredible Hulk, Iron Man 2, Thor, Captain America: The First Avenger, and Marvel’s The Avengers. That was Phase One. Phase Two gave us Iron Man 3, Thor: The Dark World, Captain America: The Winter Soldier, Guardians of the Galaxy, Avengers: Age of Ultron, and Ant-Man. Phase Three includes Captain America: Civil War, Doctor Strange, Guardians of the Galaxy Vol. 2, Spider-Man: Homecoming, Thor: Ragnarok, Black Panther, Avengers: Infinity War, and Ant-Man and the Wasp.