Christian Bale did as much research as he could for his latest role but he wasn’t allowed to meet the man he was portraying.

In “Vice”, Bale plays former U.S. vice-president Dick Cheney. In the new Hollywood Reporter, Bale, director Adam McKay, and co-star Amy Adams discuss making the politically charged new film.

RELATED: Christian Bale Transforms Into Dick Cheney In The First Trailer For ‘Vice’

Bale explained that, despite his best efforts, he was not able to arrange a meeting with Cheney, thanks to his lawyers.

“I said, ‘Wait, every real person I’ve ever played I’ve always met,’” he recalled. “And they said, ‘Yes, but you’ve acquired their life rights.’ I would like to be able to sit and look Cheney in the eye and say why I feel like it’s justified to tell his story, you know? And I hope I will do it one day.”

That said, Bale made sure to approach the real-life character with as much neutrality as possible.

“What I really wanted to make sure that I did is that I removed any of my own politics from it,” he said. “I was completely always looking for the good, for the positive, for the understandable aspect of why he would’ve made the decisions that he made. It was precisely to counter Adam and to counter what would be the assumed standpoint of the bunch of Hollywood liberals.”

RELATED: Sacha Baron Cohen Auctions Dick Cheney-Signed Waterboarding Kit On eBay

Adams also spoke about empathizing with her character, Cheney’s wife Lynne.

“I still feel the need to defend Lynne when people talk about her,” she explained. “For me, it was my relationship with my grandmother. My grandmother who grew up in Provo, Utah, working-class. She reminded me so much of Lynne. I would just think of her and her offering me money to rub her bunions. ‘Amy, I’ll give you a quarter.’”