Anthony Mackie is playing Falcon, alongside Chris Evans, in the sequel to Captain America: The First Avenger (titled Winter Soldier), which is directed by Joe and Anthony Russo.
Winter Soldier will center heavily on the resurrection of Bucky Barnes, played in Captain America: The First Avenger by Sebastian Stan.
By the way, Samuel L. Jackson is in this as well, reprising his role as Nick Fury.
Captain America: Winter Soldier opens April 4, 2014.
Marvel has released a new spot for the upcoming movie, which features more footage of Falcon in action than any other trailer or clips we've seen thus far. Check it out below, followed by Mackie's/Falcon's character poster underneath: