The Avengers: Age of Ultron's Black Widow knows how to tame Bruce Banner's wild side.

The gamma-soaked scientist has never quite been able to master the transition between the mild-mannered Dr. Banner (Mark Ruffalo) and the giant green rage machine that is the Hulk, but Earth's Mightiest Heroes' favorite assassin will be able to help.

A new clip for the May 1 film has been released, and the Hulk/Black Widow (Scarlett Johansson) scene shows that Banner and Romanoff have built a much stronger relationship than when we left them after the Battle of New York.

There have been strong suggestions that the two characters will even head in a romantic direction during Age of Ultron. While unable to confirm the rumor, Ruffalo cryptically teased the pair's future while speaking with IGN.

"Uhhh, we don't have a relation---What kind of relationship?" Ruffalo said evasively before looking at a Disney rep for permission to talk about the alleged Hulk/Black Widow romance. "Did you tell them that? Okay, I'll play. I'll play along. Yeah, yeah. There's a really important relationship between...[Laughs] I was just happy that I was in the movie at all! And any scenes that I got to be with her were...a big bonus."

Do you think Banner and Romanoff should be together? Sound off in the poll below!

Find out more when The Avengers: Age of Ultron hits theaters on May 1.