Ben Stiller has a message for Joyce “Tillie” Mitchell following her claims that his hit Showtime mini-series “Escape at Dannemora” is filled with “lies.”

“It’s not a documentary,” explained Stiller, speaking to Deadline about Mitchell’s jailhouse assessment to The Post on Sunday. “We did have to create scenes based on us inferring what we believed to be the truth.”

“My guideline was always to try and tell what I thought happened,” Stiller added. “This was a story I wanted to tell in as full a way as possible and really tried to take into account the context of the world that everyone was living in. And the reality of what it means to be a worker in a prison and the situation that everybody deals with up there in that part of the state. I was just trying to tell the story in as real and hopefully as entertaining a way as possible without exploiting.”

BEN STILLER,  SAYS HE APOLOGIZED FOR 'SIMPLE JACK,' STANDS BY SHAUN WHITE

Mitchell, 54, blasted Stiller during her Post interviews last week at Bedford Hills Correctional Facility in Westchester — where she’s currently serving a seven-year sentence for the 2015 prison break that was the basis for “Escape at Dannemora” — for portraying her as a lovesick prison seamstress.

Stiller directs the Showtime series and there are several scenes showing Mitchell having consensual sex with convicted killers David Sweat and Richard Matt, who were at the center of the three-week manhunt.

“I never had sex with them,” seethed Mitchell. “Ben Stiller is a son-of-a-b***h liar.”

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