In a new preview clip from her 20/20 interview with ABC News' Dan Harris that was shown on Good Morning America on Friday, the 45-year-old King of Queens star opens up about her break from the controversial church, her new memoir, Troublemaker: Surviving Hollywood and Scientology, and the church's most famous member, Tom Cruise. It was also announced that for the first time ever, Cruise's ex-wife, Katie Holmes, will speak out on Remini and Scientology on the much-anticipated special.
Remini doesn't hold back when talking about Cruise, recalling one particular incident where she claims she was written up by the church after she spent a night hanging out with the 53-year-old actor.
"Tom wants you to come over [to his house] and teach him salsa dancing," she begins, explaining a phone call she says she received from a church official one night.
According to Remini, she and her husband, Angelo Pagan, accepted the invitation, and hung out with Cruise and Holmes, his girlfriend at the time. She claims that two Scientology officials were at Cruise's home when they arrived.
"He was like, forcibly kissing Katie," Remini says. "And I said, 'Hey, get a freaking room.' And uh, well. I was written up for that."
She says that one of the high-ranking officials "tattled" on her, which she says is not out of the ordinary, as members of the church regularly write "knowledge reports" on one another. According to Remini, when someone in the church is accused of breaking a law, they have to go through auditing sessions.
"You can assume if you say something that is critical of the church, you will be written up. Husband, wife, mother, daughter, it's what the group does to regulate itself," she says, revealing that she, too, had written a few reports herself. "I wrote Angelo up all the time!"
Harris then reads a statement from the Church of Scientology, which bashes Remini for "exploiting" her former religion in an attempt to "stay relevant." The church also calls out Remini for being "incapable of moving on with her life."
"Yes, I agree with them," she says. "I wish I, too, could get over 30 years of this quickly. Unfortunately it's going to take some time."
In a statement to ET, the Church of Scientology said: "It comes as no surprise that someone as self-absorbed as Leah Remini with an insatiable craving for attention would exploit her former faith as a publicity stunt by rewriting her history with it, including omitting that she was participating in a program to remain a Scientologist by her own choice, as she was on the verge of being expelled for her ethical lapses."
Harris' full exclusive interview airs on ABC News' 20/20 Friday at 10 p.m. ET on ABC. In the meantime, watch the video below to hear more on Remini's break from the church in her interview on Oprah: Where Are They Now that aired back in June.