Don't expect to hear any Avengers: Infinity War spoilers from Falcon actor Anthony Mackie, and certainly don't expect him to tell you if his character becomes Captain America in the next Marvel Studios film.
On Good Morning America, one of the hosts pointed out that Falcon became Captain America in the comics. At that, Mackie said, "In the comics, yes. Twice!" Prompted to continue, he added, "They're good comic books!"
Like Mackie mentioned, Falcon did indeed become Captain America in the comics. Most recently, he took over the mantle in Rick Remender and Carlos Pacheco's Captain America #24 in 2014, after Steve Rogers lost the super soldier serum in his system. He held the title until late 2017, when he gave the shield back to Steve in Generations: Sam Wilson Captain America and Steve Rogers Captain America.
Falcon isn't the only other Marvel character to become Captain America in the comics. Bucky Barnes also held the title for some time, as have lesser-known characters like Isaiah Bradley and Jeffery Mace. Since Steve Rogers will put his life on the line in Avengers: Infinity War, we may see the same happen in the Marvel Cinematic Universe sooner rather than later.
Directed by Joe and Anthony Russo, Avengers: Infinity War stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Anthony Mackie, Paul Rudd, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Tom Hiddleston, and Josh Brolin. The film arrives April 27.