Let me just let Twitch explain this:
Daniele Rizzo is at it again. The German film geek has built a name for himself by turning up at press junkets decked out in hand made costumes to conduct bizarre interviews, on one notable occasion turning up to interview the cast of Captain America decked out as Captain Italy. Well, with the whole Avengers team passing through it was time for the good Captain to make a repeat appearance but clearly this time he needed a bit of an upgrade. Check the video below as Tom Hiddleston, Mark Ruffalo, Chris Hemsworth, Clark Gregg and Cobie Smulders try to figure out what the hell is happening.
I don't know what it is about this video, which is not exactly gut-bustingly hilarious, but which I adore. Maybe it's because Rizzo is delightfully weird. Maybe it's because all the stars seem to be enjoying themselves immensely. Maybe it's because I'm baffled as to why the studios allow this dude to show up and sit down with most of the movie's stars for a considerable amount of time only to talk nonsense. Honestly, I have no idea why they let him in, but I'm very glad they did.