Paul Haggis, writer of Oscar award-winning Million Dollar Baby, may very well be the most vocal about leaving the church when an open letter he wrote in 2009 was posted to the public on a Scientology blog. Haggis claims that he had intended the letter to be private.
Haggis outlined for leaving was a San Diego branch of the church's name on a list of supporters for California's Proposition 8 which was a move to ban gay marriage in the state. Paul Haggis has two gay daughters.
Paul also listed that the church denies that it asks it's members to disassociate with anyone that has anything disparaging to say about the church. Paul claimed that they asked his wife to do that very thing to her parents.
Paul left the church after 30 years of dedication.