GOSSIP. Every single dude in attendance at Comic-Con had his head explode when actress Scarlett Johansson showed up on Saturday to join co-stars Robert Downey Jr., Sam Rockwell, Don Cheadle and director Jon Favreau for the “Iron Man 2” panel discussion. The hottie talked about her new role in the sure-to-be-blockbuster as the Black Widow and told the audience that her audition consisted of “a couple of deep knee bends and lunges,” reports EW.com. Of course, there is no verification of the spontaneous brain combustion claim but come on — it’s Comic Con. Scarlett Johansson is the hottest thing they’ve seen since Anime artists started drawing nips on their cartoons.