Context: Captain America: Civil War (2016) is the first film in the franchise's Phase Three, and is followed by Doctor Strange (2016), Guardians of the Galaxy Vol. 2 (2017), Spider-Man: Homecoming (2017), Thor: Ragnarok (2017), Black Panther (2018), Avengers: Infinity War (2018), and Ant-Man and the Wasp (2018), with Captain Marvel (2019) and an untitled Avengers film (2019) still scheduled for the phase. Sony Pictures distributes the Spider-Man films, which they continue to own, finance, and have final creative control over.

Question: what was the last marvel movie to come out?
Steam of consciousness below:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
To answer the question, consider the following: Captain America: Civil War (2016) is the first film in the franchise's Phase Three, and is followed by Doctor Strange (2016), Guardians of the Galaxy Vol. 2 (2017), Spider-Man: Homecoming (2017), Thor: Ragnarok (2017), Black Panther (2018), Avengers: Infinity War (2018), and Ant-Man and the Wasp (2018), with Captain Marvel (2019) and an untitled Avengers film (2019) still scheduled for the phase.
So, the answer is Ant - Man and the Wasp.