Comic-Con 2014: Marvel Debuts CAPTAIN AMERICA and BLACK WIDOW Concept Art For AVENGERS: AGE OF ULTRON

The 2014 San Diego Comic-Con International is moving along with Preview Night and Thursday already in the books. As Marvel Studios did on Preview Night, when they released two exclusive concept art posters of Iron Man and Scarlet Witch, on Thursday they released two more new concept art posters.

Marvel revealed Avengers: Age of Ultron posters of Captain America and Black Widow with each hero fighting off multiple Ultron bots. See the new posters below.

Two more concept art poster reveals are due on Friday so stay tuned... 

Avengers: Age of Ultron is currently filming in the U.K. and is set to release in theaters on May 1, 2015.