Warner Brothers’ “Watchmen” may be in big trouble. Twentieth Century Fox announced on Monday that it would seek an injunction in order to prevent the March release of the movie following a Los Angeles court ruling that a copyright lawsuit against Warner Bros. can proceed.

The production has already been filmed and is due for release on March 6, according to Warner Bros. spokesman Scott Roe, cited by Reuters. The movie about some imperfect, dark superheroes, with a budget estimated to be around $120 million, is a film adaptation of a 1980s Alan Moore and Dave Gibbons’ eponymous comic book limited series.

Last week, judge Gary A. Feess of United States District Court for the Central District of California rejected a request by Warner to write off Fox’s infringement accusations.

Fox claims it obtained motion picture rights to the “Watchmen” graphic novel in the late 1980s and, in spite of the fact that it gave up some of the rights to the material in 1991, it did not relinquish the right to distribute the first movie.

“We will be asking the court to enforce Fox’s copyright interests in “The Watchmen” and enjoin the release of the Warner Brothers film and any related ‘Watchmen’ media that violate our copyright interests in that property,” Fox spokesman Gregg Brilliant said, as quoted by Reuters.

“Watchmen” is directed by Zack Snyder, director of the 2007 blockbuster “300,” and follows a group of ex vigilantes as war begins to burst between the United States and the Soviet Union.

Fox filed the lawsuit against Warner Bros. in February and the accusations against the studio included interference with contract, breach of contract and copyright infringement.