Spidey
There is no doubt that Spider-Man will join the Marvel Cinematic Universe, and his membership comes with a new nickname. Comic book fans, meet Underoos (just kidding ... 'on the roof').

After five films produced by Sony and a contractually obligated absence from the smash-hit films owned by Disney, Marvel’s most popular hero is finally joining the biggest multiverse in cinema. Now played by young British actor Tom Holland, the wall-crawler is making his first appearance in the MCU in "Captain America: Civil War," and fans got their first glimpse at the latest big screen iteration of him in the film’s new trailer last 10 March 2016 (See below).

There’s been a lot of speculation as to who he’d be joining in the film, which splits the Avengers into rival factions led by Captain America and Iron Man, and in a short scene at the end of the trailer, it’s revealed that he will be — at least at first — teaming up with Tony Stark. That’s bad news for Captain America, considering that Spidey is toting Steve Rogers' iconic shield as the star-spangled hero struggles to handle an assault by Iron Man.

The rest of the trailer — and there are a full two minutes before Spidey appears — gives more information about the plot of Joe and Anthony Russo’s new film. Tony Stark and his allies are siding with government officials (led by William Hurt) who want to register and regulate superheroes; Captain America and his buddies are resisting the push with everything they have.

In the comics, Tony Stark is the clear bad guy — but as you can see in the trailer, it’s hard not to at least understand his rationale for trying to reign in the destruction caused by his super-powered friends.

"Part of the challenge in not making Tony clearly wrong, as he seems to me in the comic book ... is to give him his own personal reason," co-writer Christopher Markus told Yahoo Movies during a visit to the film’s set. "So that he’s coming from a place where you understand why he would make this decision."