The new policy will force their same-sex partners to get married or leave the country.
Under the Same Sex Marriage Prohibition act, attendees at gay weddings face up to a decade in prison.
Eddie Rosenstein's new documentary The Freedom to Marry premieres March 3.
The election of a demagogue imperils many homegrown advancements in LGBT rights. It also degrades the global progress when the standard-bearer—America—is shown to be so vulnerable.
“I’d probably vote differently now on the gay marriage issue," said incoming Prime Minister Bill English. "I don’t think that gay marriage is a threat to anyone else’s marriage."
Many hope the island will be the first in Asia to legalize same-sex marriage.