"Captain America: Civil War" starring Robert Downy Jr. and Chris Evans is one of the most-awaited superhero movies. Although the film is slated to be released in 2016, fans may have just got lucky, as the description of the film's trailer, which is expected to air as part of Disney's D23 Expo, has been leaked online.

A Reddit user, Silverpool, claims to have seen the "Captain America: Civil War" D23 footage and has posted a detailed description of the trailer, which begins with General Thunderbolt Ross talking about his registration act. It shows all the superheros, including Spider-Man. 

Here is the description of the trailer by the Reddit user: 

"The footage begins with General Thunderbolt Ross talking about registration act. It then cuts to a military team repelling down a building. We see a snowy forest. We see someone's arm being injected. Close ups of Black Widow, Hawkeye and Scarlet Witch War Machine Fighting Wanda General Ross says "You either sign yourself over or this is your last stand!" We hear Captain America "We won't stand for this!" Then Iron Man says "Then let's fight! We see a skyscraper explode Captain America and Iron Man fight in a baseball field. We see Bucky hanging onto a helicopter. Black Widow and Falcon fighting. We see Black Panther fight Captain America. Close up of Crossbones We see a closeup of someone's legs walking (Baron Zemo) "You think your world can survive?" Says Zemo "Let's Find Out" says Spider-Man We see a close up of Spider-Man fighting Baron Zemo (FAST FIGHTING MONTAGE) Vision destroys a helicopter. Hawkeye zip lining between buildings Ant-Man punches Vision. We see Crossbones and Captain America fight. "Everything you fought for will come crumbling down" says General Ross. We see Martin Freemans characters driving a car Iron Man shoots Captain America We see Spider-Man swinging through buildings (it's ever so brief but it looks like the suit will In fact be blue and red not black) Iron Man Punches Captain America Shield Cuts to the logo Captain America: Civil War."

Umberto Gonzalez, from Heroic Hollywood has said that the trailer could actually be true as the description sounds quite legit. "The skyscraper bit falls in line with what I reported about the inciting international incident that triggers the alienation between the Avengers," he said.

Well, we would know if the description is correct or not when the trailer is screened at D23 Expo, to be held between 14 and 16 August.

"Captain America: Civil War" is slated for release on 6 May, 2016, in the US and on 29 April, 2016, in the UK.