"Suicide Squad" producer Charles Roven reveals Jared Leto's Joker acting methods involved "isolating" himself from the rest of the cast.

In an interview with Collider, Roven talks about how Jared Leto brought the Clown Prince of Crime aka The Joker to life in the "Suicide Squad" film. 

"Look, you know, it was different, it was fun," he quipped. "The group first wasn't sure because the AD's had to call him 'Mr. J' to get him to come to the set [laughs]. And he did in many ways isolate himself from the rest of the group, but that's really what his character was, the purpose of his character in many ways, other than when he was with Harley or trying to get Harley."

"It was very entertaining, it was fuel for a lot of good sport and a lot of laughs, and his isolation bonded the squad, and we wanted the squad bonded."

Roven also described what it was like filming "Suicide Squad," revealing that it was filled with "camaraderie."

"I have to say, it was one of the most fun sets ever. I've been doing this for a while, and the camaraderie that was built on that set-everybody couldn't wait for the next day to come back to work."

For those unaware, the movie follows a secret team of convicted supervillains that have been assembled by the U.S. government. The team undertakes dangerous misions in exchange for shortened sentences, according to Cinema Blend's summary of the film.

The film features Will Smith (Focus) as Deadshot, Jared Leto (Dallas Buyers Club) as Joker, Margot Robbie (Wolf of Wall Street) as Harley Quinn, Cara Delevigne (Papertowns) as Enchantress, Joel Kinnaman (Run All Night) as Rick Flagg, Jai Courtney (Terminator: Genisys) as Captain Boomerang, Adewale Akkinuoye-Agbaje (Lost) as Killer Croc, Adam Beach as (Bury Me At Wounded Knee) as Slipknot, Jay Hernandez (Hostel) as El Diablo and Viola Davis (How To Get Away With Murder) as Amanda Waller.

With Jared Leto's Joker in the spotlight, "Suicide Squad" opens in U.S. theaters on Aug. 5, 2016.