It's no secret that we here at Popular Science are excited about the upcoming Marvel's Captain America: Civil War. We've written on how science and tech play a major role in The Avengers. Spider-Man plays that up too in a new Civil War TV spot. We see your friendly neighborhood web-slinger swing into a building and take on Cap's old pal Bucky. Rather than be freaked out though, Spidey's impressed by Bucky's metal arm.