In response to a threatened boycott to an upcoming big screen adaption of Ender's Game, author Orson Scott Card has called the gay marriage issue “moot.”

A Geeks OUT campaign titled Skip Ender's Game asks moviegoers to boycott the film over Card's outspoken opposition to gay nuptials.

“Do not buy a ticket at the theater, do not purchase the DVD, do not watch it on-demand. Ignore all merchandise and toys,” the online campaign reads. “By pledging to Skip Ender's Game, we can send a clear and serious message to Card and those that do business with his brand of anti-gay activism – whatever he's selling, we're not buying.”

In a statement given to Entertainment Weekly, Card, also a board member of the National Organization for Marriage (NOM), responded that last month's Supreme Court rulings made the issue moot.

Ender's Game is set more than a century in the future and has nothing to do with political issues that did not exist when the book was written in 1984,” Card wrote.

“With the recent Supreme Court ruling, the gay marriage issue becomes moot. The Full Faith and Credit clause of the Constitution will, sooner or later, give legal force in every state to any marriage contract recognized by any other state.”

“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.”

Ender's Game stars Harrison Ford, Sir Ben Kingsley and Abigail Breslin. It is set to open in November.

In March, artist Christopher Sprouse decided against illustrating an Adventures of Superman comic authored by Card over his remarks.