Viola Davis Nearly Pepper-Sprayed Jared Leto After 'Suicide Squad' Prank

— -- When it comes to the highly anticipated superhero film "Suicide Squad," things seem to be getting just as intense off screen as they are expected to be on screen.

In an interview with E! News, actress Viola Davis, who plays Amanda Waller in the film, even admitted to having heart palpitations on set. What’s more, co-star Jared Leto, who plays the Joker, was so committed to his role, he sent members of the cast boxes of bullets -- a stunt, Davis admitted, that was a bit scary.

The actress added that, despite being on set together, she met the real Leto for the first time at a Glamour magazine event.

“I met him really for the first time because before that I was only introduced to the Joker,” Davis told E! News. “And there was a part of me that, you know, I almost had my pepper spray out.”

Davis said the whole cast, which includes Margot Robbie, Will Smith and Cara Delevingne, got to show their crazy.

"Every single person in it gets to be completely insane because all the characters are insane," Davis said. "They're bad guys. We're all bad guys."

"Suicide Squad" hits theaters on Aug. 5.