OSCEOLA, Iowa -- In what the Texas governor calls a  "transformation," Rick Perry on Tuesday said that he has reversed his acceptance of abortion in some severe circumstances, saying that he now opposes the procedure even in cases of rape and incest.

Perry said the change came after seeing the "Gift of Life" film produced by former Arkansas Gov. Mike Huckabee. He told an audience of Iowans at Clark Electric Co-op in Osceola that he was moved by the story of a woman who introduced the film during a screening earlier this month in Des Moines.

"She said, 'I am the product of rape.' And she said 'my life has worth,'" Perry said of his exchange with the woman. "It was a powerful moment."

The Texas governor made the statement in response to a question from Joshua Verwers, a pastor at Full Faith Christian Center in Chariton, who noted that Perry had recently signed a stringent Personhood USA pledge that urges signatories to oppose abortion "without exception and without compromise."

Candidates Rick Santorum, Michele Bachmann, Newt Gingrich and Ron Paul have also signed the pledge.

Verwers said after the event that he was initially skeptical of Perry's flip on the position but that the governor's answer was "too perfect" and "sincere" to have come from anywhere but Perry's own heart.

"I do believe it was a sincere answer and that he has converted his position and that he would support personhood," the pastor told reporters.