It appeared the lawyers were introducing the material to demonstrate the campaign for the ban appealed to religious-based, anti-gay bias to scare voters into supporting the measure.

The trial, being held in San Francisco, is the first in a federal court to examine if states violate the U.S. Constitution by preventing same-sex couples from marrying.

Proposition 8 sponsors objected to the video, saying the content of the simulcast was not controlled by campaign managers or leaders.

However, Chief U.S. Judge Vaughn Walker allowed the material to be put into the record because the coalition of religious and conservative groups behind Proposition 8 paid for Garlow's work.

In the six-minutes of video shown for Walker, various people opined on the negative consequences of legalizing gay marriage. One unidentified speaker compared the potential social impact of "this social reengineering of marriage" to the way the 9/11 terrorist attacks made the world "a fundamentally different place."