There sure was a rukus at the opening of "8: The Mormon Proposition" at the Sundance Film Festival on Sunday.

Protesters showed up to rally against the LDS Church's involvement in overturning gay marriage in California and show their support for the film.

We are not here to be anti-LDS," rally organizer Eric Ethington said Sunday, outside the documentary's premiere at the Racquet Club venue in Park City. "We are here to share our own stories." 

During the 2008 campaign, the Mormons sunk a lot of time and money into making sure that Proposition 8 passed and that gay marriage was banned.