Despite the controversial divorce of Katie Holmes and Tom Cruise, the actress tried not to say anything negative about her ex-husband.
The "Mission Impossible 5" star was worried about the new Scientology expose that former member Leah Remini will unveil.
The 45-year-old actress wrote a book entitled "Troublemaker" which will reveal her experience while with the religious group.
"It will be like a nuclear bomb going off in the church," Scientology expert Tony Ortega told In Touch. "It's the inside story about how people are abused and how families are split apart, and it will be devastating."
Leah Remini has been a member of the organization for almost 30 years and Tom Cruise is worried that she'll reveal details about his relationship with Katie Holmes and Nicole Kidman.
"Tom's frightened that Leah knows about Scientology's dirty laundry," an insider said. "He's bracing for the worst."
During an appearance in "Good Morning America," Dan Harris of ABC News, who interviewed Remini for a special segment, shared a shocking revelation that would definitely alarm the 53-year-old actor.
"You're also going to hear from Katie Holmes, the former wife of Tom Cruise," Harris teased. "[And] what she is now saying about Leah."
The "King of Queens" actress shared her experience during her first meeting with the Hollywood superstar.
"At first it's very effusive, it's very loving - you get the laser in on you and you're the most important thing that ever happened," she said.
She also shared the time that she went to the actor's home to teach him salsa and the Scientology officials were there as well as Katie Holmes.
"He was, like, forcibly kissing Katie," Remini revealed. "I said, 'Hey, get a friggin' room.'"
Leah allegedly got in trouble with the organization because of that.
"Being critical of Tom Cruise is being critical of Scientology itself," she confessed. "You are evil." Many fans were thrilled to find out what Katie Holmes would say about Scientology and the former member.
However, it seems that won't happen anymore as Suri Cruise's mom declined to take part of the expose. According to Vanity Fair, the 36-year-old actress' representative claimed that her participation was not intentional.
"In response to an email sent from the producers or fact-checkers from 20/20 asking a plethora of questions, we supplied no answers and instead gave only a one-sentence statement in response," her rep told People.
That statement is "I regret having upset Leah in the past, and wish her only the best in the future." According to Katie Holmes' publicist, she will not be appearing on the special nor discuss about Scientology and her former marriage to Tom Cruise.