In other words, this movie is crowded. Maybe overcrowded. Marvel and Sony’s new Spider-Man (Tom Holland) steals the show with his wisecracks and web-swinging, but serves almost no narrative purpose. Black Panther (Chadwick Boseman) is only slightly more important to the story; his main function is to introduce the character to a broader audience before he gets spun off into his own standalone movie in 2018. The subplot involving the Winter Soldier (Sebastian Stan) ties up some loose ends from the last Captain America movie, but it’s not really crucial to the film’s central conflict between Cap (Chris Evans) and Iron Man (Robert Downey Jr.) over governmental control of the Avengers. (The Winter Soldier barely appears in the original Civil War comics.)
He’d already majorly hinted that it would happen on Jimmy Kimmel Live, but now Sony’s official Twitter account says it’s confirmed: Robert Downey Jr. will appear in the upcoming Spider-Man reboot from Sony, Spider-Man: Homecoming.