Actor Tom Cruise says his fiancee Katie Holmes has joined him as a follower of the Church of Scientology.
Katie Holmes and Tom Cruise are due to marry this year
The 43-year-old told US network ABC their baby, due soon, would not be baptised a Catholic, although Holmes, 27, was brought up in that faith.
But he denied US media reports that he had bought a dummy to muffle the moans of his partner as she gave birth.
He said Scientology's doctrine of "silent birth" had been misunderstood and exaggerated by the press.
"It's basically just respecting the mother, and helping to be quiet," he told interviewer Diane Sawyer.
"But the mother makes as much noise... she you know, she's going through it. She does what she's got to do."
Asked whether their baby would be given a Catholic baptism, he said: "You can be Catholic and a Scientologist. You can be Jewish and be a Scientologist. But we're just Scientologists."
"Katie, too?" Sawyer asked.
"Katie, too," Cruise replied.
Cruise denied reports the couple's relationship had caused tension with Holmes' family, who are devout Catholics.
Asked if they approved of her switch to Scientology, he said: "Absolutely, yes."
The Church of Scientology was set up in the United States in 1954 and claims eight million members worldwide.
The church offers self-improvement on the basis of the writings of the late science-fiction author L Ron Hubbard, who spelled out principles that he called Scientology and Dianetics.
But critics claim it is a fake religion based on making money from its followers. Cruise is a passionate advocate of the church, and travelled to Germany in 2002 to try to persuade its government to lift its ban on the group.
The baby will be the first for Holmes, while Cruise has two adopted children from his marriage to Nicole Kidman.
Cruise told GQ magazine in a separate interview the couple planned to marry in late summer or early autumn. They have been engaged since June 2005.