One of the biggest parts of the Arrowverse that fans most look forward to each year is the annual crossover event, which sees the leading stars from 'Arrow', 'Supergirl', 'The Flash' and 'Legends of Tomorrow' come together, usually to save the world in some capacity. That looks set to continue this year, in a narrative subtitled 'Crisis on Earth-X' and the promise of more characters from the Arrowverse featuring than ever before.

Stephen Amell stars as Oliver Queen in the ArrowverseStephen Amell stars as Oliver Queen in the Arrowverse

Exactly what will go down in the crossover remains to be seen, but it looks as if 'Crisis' will be an event that dwarfs the scale of all that have come before it. This is going to be one of television's biggest four-hour stories, and actor Stephen Amell, who plays Oliver Queen aka the superhero, Green Arrow, seems to be very excited.

Speaking to a number of reporters including ComicBookMovie during a set visit, Amell explained: "What I can tell you about this year is you know the order of the episodes, as in 'Supergirl', 'Arrow', 'Flash', 'Legends'? That doesn't mean s**t. You can't tell what episode is what episode. The first episode centers on everyone coming together for Barry and Iris's wedding. So you're collecting everyone from all over the place, and then it's really effectively their story throughout the first hour, which would indicate that it's a 'Flash' episode, except it's not. I think it's weird. I would wager to guess that I have the most screen time in all four episodes of the crossover."

He added: "It really is, for the first time, it's an event. It's not a crossover anymore. Call it the crossover if you want. But it's kind of like calling the Super Bowl just a football game. Yeah, sure, they play football, but there's so much other stuff that goes on with it. It's an event."

As stated, the "event" will open with Barry and Iris' wedding, but it's an occasion that doesn't manage to get off without a hitch, as villains from Earth-X attack the ceremony and those attending are forced to take part in one of their fiercest battles to-date. We can't wait to watch it all go down.

More: Stephen Amell Reveals His Favourite Part Of 'Arrow' Season 6

'Arrow', 'Supergirl', 'The Flash' and 'Legends of Tomorrow' continue on The CW in the US and Sky1 in the UK.