Avengers: Age Of Ultron - 32 Easter Eggs, In-Jokes And References
30. Banksy
After seeing his "documentary" Exit Through The Gift Shop debut the same weekend as Iron Man 2 in America, British street artist and political provocateur Banksy appears in Whedon's sequel.
When Strucker fires on the Sokovian people and Tony Stark sends in the Iron Legion (didn't learn his lessons from Iron Man 3, then?) they are met with discontent and protest. In the background, images of Iron Man clearly painted by Banksy can be seen.
The motifs continue throughout Sokovia, and the artist also gets a name check from Stark later in the movie.