Margot Robbie explained a bit about Harley Quinn's background in the film, which sounds very similar to her origin in "Batman: The Animated Series." "Dr. Harleen Quinzel is working at Arkham Asylum. She's this psychiatrist, and that's where she met the Joker, fell for Joker -- and born out of that was the transformation into Harley Quinn."
Viola Davis (Amanda Waller) said of Robbie's energetic performance, "It was frightening to come within an inch of her."
Cara Delevingne, the actress who plays Dr. June Moon/Enchantress, prasied the film's script and it's representation of women. "I don't remember seeing a movie where the woman got such an important role...I remember reading and going, 'Oh my God, the girls have the best lines.'"
Additionally, Will Smith said of the film's theme, "It's not a movie about good vs. evil, it's a movie about bad vs. evil."
Check out ET's full SDCC "Suicide Squad" featurette below:
"Suicide Squad," based on the DC Comics team and starring Jared Leto as the Joker, Margot Robbie as Harley Quinn, Will Smith as Deadshot, Jai Courtney as Captain Boomerang, Cara Delevingne as Enchantress, Adewale Akinnuoye-Agbaje as Killer Croc, Karen Fukuhara as Katana, Joel Kinnaman as Rick Flag, Jay Hernandez as El Diablo and Adam Beach as Slipknot, is scheduled for release on Aug. 5, 2016.