Anthony Mackie has had a blast introducing Harrison Ford to the MCU!Ford is making his Marvel debut as Mackie officially takes up the Captain America mantle in the upcoming -- a new subtitle for the film, which was previously called Thestar is taking over the role of U.S. President Thaddeus «Thunderbolt» Ross, who was previously played by William Hurt prior to his death in 2022.Last month, Mackie shared an on-set picture of the two checking out footage from their scenes, and when the actor spoke with ET's Ash Crossan recently, he admitted that working with the legendary star hasn't quite been what he expected.«It's been a lot of fun,» Mackie shared.