Lawrence Wright in The New Yorker:
On August 19, 2009, Tommy Davis, the chief spokesperson for the Church of Scientology International, received a letter from the film director and screenwriter Paul Haggis. “For ten months now I have been writing to ask you to make a public statement denouncing the actions of the Church of Scientology of San Diego,” Haggis wrote. Before the 2008 elections, a staff member at Scientology’s San Diego church had signed its name to an online petition supporting Proposition 8, which asserted that the State of California should sanction marriage only “between a man and a woman.” The proposition passed. As Haggis saw it, the San Diego church’s “public sponsorship of Proposition 8, which succeeded in taking away the civil rights of gay and lesbian citizens of California—rights that were granted them by the Supreme Court of our state—is a stain on the integrity of our organization and a stain on us personally. Our public association with that hate-filled legislation shames us.” Haggis wrote, “Silence is consent, Tommy. I refuse to consent.” He concluded, “I hereby resign my membership in the Church of Scientology.”
More here.