EXCLUSIVE: 'Suicide Squad' Star Jai Courtney Explains His Initial Qualms About Playing Captain Boomerang

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Jai Courtney opened up to ET about the reservations he had playing Captain Boomerang in the upcoming comic book movie, Suicide Squad.

Like his character, Courtney also hails from Australia, but that's where their similarities end.

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"The genesis of that character was like in really campy '60s comics. You read that old material and he's racist, and so I had apprehensions about how that would be handled," Courtney told ET. "Fortunately, I was in the trusty, psychotic hands of [director] David Ayer."

Courtney also admitted that there were parts of the dialogue that offended him as an Australian.

"There was just certain things where I was like, 'I can't say that and be proud of that as an Australian,'" he said. "But thank God they gave it to an Aussie and not someone trying to do a terrible version of our accent."

Courtney confirmed reports that they are reshooting sections of the film, but he told us it has nothing to do with the dialogue or punching up the comedic elements of the movie.

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"There's some additional action stuff we've been doing, which is pretty dope, and really we're just sort of adding in that sense," Courtney explained.

The 30-year-old Spartacus: War of the Damned (originally titled Spartacus: Blood and Sand) star also opened up to ET about Be Here Now, the documentary following his late best friend and Spartacus co-star Andy Whitfield's battle with cancer.

"He bravely invited a camera crew into his life and the life of his family to document his journey with Non-Hodgkin's lymphoma and treatment," Courtney said. "Andy was a very special friend, and his family I consider an extension of my own. To see this film finally go the distance and be having a release is such a triumph, and so I'm just here to sort of support that and honor his legacy and help in any way I can."

Perhaps what struck Courtney the most about his late friend was his positivity through his tragic ordeal.

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"He just had this philosophy that you can create your own destiny," he said. "A lot of what's behind the title itself and that idea of 'Be Here Now' -- being present, being in that moment -- is that circumstances are going to come at you whether you like it or not and they're going to happen. They're going to unfold one way or another and whether you think you have a choice in how that works out or not doesn't really matter, but you're going to have to deal with them, so accept them. Be present in the moment that you're dealing with, and just be true to that."

Be Here Now is out April 8.