Avengers: Infinity War is set to feature more Marvel heroes in one film than ever before and while that may lead to a problematic overly stuffed movie, at least we have plenty of fun behind the scenes pictures of a truck load of movie stars having a ball on set to look forward to.

One such image surface on Robert Downey Jr.'s Twitter account yesterday when he shared an image of himself, Benedict Cumberbatch, Mark Ruffalo and Benedict Wong enjoying some lunch on set. 

Now to the casual observer this may seem like *just* a photo of four actors having lunch. But for the Marvel fans there is so much to savour in this photo.

Like, so much. Just look at that facial hair. 

Looks like poor Captain America is going to have to find someone else to sit with.