The attempt to demand money from thousands of Australians who allegedly pirated the movie Dallas Buyers Club has suffered a major blow, with the Federal Court refusing to order the release of the downloader's names and addresses unless the movie rights holder dramatically changes its claim and backs it up with a $600,000 bank bond.

In a scathing judgment handed down on Friday, Justice Nye Perram refused to lift a temporary stay on the release of the contact details after reading the demands that the rights holders for Dallas Buyers Club (DBC) intended to make.

Another twist in the battle between Dallas Buyers Club and alleged pirates.

Justice Perram described DBC's proposal to charge those who shared the film thousands of dollars in licencing fees as "so surreal as not to be taken seriously".

"If such a claim were made in a proceeding for copyright infringement in this Court I am satisfied that it would be dismissed summarily without trial ... as a case having no reasonable prospects of success," Justice Perram said.