The Christian conservative group One Million Moms is threatening to boycott Campbell's Soup over an ad which features a gay couple and their son.

In the 30-second spot, real-life dads David Monahan and Larry Sullivan are seen feeding their son “Star Wars” soup.

Sullivan recites one of the films franchise's most famous lines, “I am your father,” then Monahan adds, “No, no. I am your father.”

(Related: Campbell's Soup ad features real-life gay dads, son.)

The ad is part of Campbell's “Made for Real, Real Life” campaign, which features a diverse mix of American families.

In an email to supporters, One Million Moms said that Campbell's Soup was “glorifyng this unnatural marriage.”

“One Millions Moms believes family is based on love, but this does not justify normalizing sin. 1MM does not agree with the need for Campbell's to support same-sex marriage or couples,” the group said. “This is a marketing decision Campbell's will regret.”

“There is concern about the way this ad is pushing the LGBT agenda, but an even greater concern is the way that they are attempting to redefine 'family' and 'real marriage.'”

One Million Moms called on supporters to urge Campbell's Soup to “pull this inappropriate commercial immediately and remain neutral in the culture war.”