Orson Scott Card, the author of the upcoming big screen adaptation of Ender's Game, has dismissed the controversy over his anti-gay activism.

The group Geeks OUT has been calling for a boycott of the film over Card's anti-gay views and his support of groups that oppose gay marriage.

Until recently, Card was a board member of the National Organization for Marriage (NOM), the nation's most vociferous opponent of marriage equality.

Card pleaded for tolerance after the Supreme Court ruled on the issue in two cases.

“Now it will be interesting to see whether the victorious proponents of gay marriage will show tolerance toward those who disagreed with them when the issue was still in dispute,” he wrote.

But the group rejected the plea, saying that nothing is “more democratic and tolerant than a consumer boycott, rooted in the ideas of free market accountability.”

In an interview published in the November 2013 issue of tech glossy Wired, Card dismissed the controversy.

“I hope that people will realize that they are not getting a true picture of me from these comments, and they're certainly not getting anything to do with Ender's Game, which was written long ago and has nothing whatsoever to do with gay marriage,” Card said.

Ender's Game stars Ford, Sir Ben Kingsley and Abigail Breslin. It is set to open in the United States on November 1.