Robert Downey Jr In Call Of Duty: Black Ops 2 Trailer
Guy Ritchie directs lavish live-action advert for videogame...
The Iron Man star is one of a number of "players" featured in the "Surprise" promo - which was directed by none other than Guy Ritchie.
It sees a number of people dressed in civilian clothes - including YouTube star FPS Russia - either wielding weapons or piloting military machinery, all saying "surprise" as they trump one another.
The clip ends with the tagline: "There's a soldier in all of us."
The game is released on 13 November for PS3, Xbox360 and PC or 30 November for Wii U - and gamers are particularly keen to get their mitts on the zombie mode.