The Falcon’s role in the plot came about after Adam McKay and Paul Rudd went to see “Captain America: The Winter Soldier (2014)” and fell in love with the character. They casually suggested working him into the plot, and Kevin Feige informed them that it would actually make perfect sense since Falcon was now living at the New Avengers compound as of Avengers: Age of Ultron (2015).
While Benicio Del Toro’s character is frequently silent in the movie, he initially had more lines. “In the original script, the character explained his background several times to Kate,” Del Toro said. “And that gave me information about who this guy was, but it felt a little stiff to have someone you just met fifteen minutes ago suddenly telling you what happened to him and who he is.” Working with director Denis Villeneuve, Del Toro began cutting some of his dialogue to preserve the mystery of who his character is; Villeneuve estimated they cut 90% of what Del Toro was originally intended to say by screenwriter Taylor Sheridan. Like Del Toro, Villeneuve saw power in stripping the character down to a brooding silence, stating that dialogue belongs to plays and “movies are about movement, character, and presence, and Benicio had all that.”