France's Human Rights League (LDH) and the CGT union announced on Saturday that they were bringing a civil case against Canal+ over allegations of discrimination relating to recent comments made by the company's CEO Maxime Saada about an open letter penned by the "Zapper Bolloré" collective.

The letter, published earlier this month in Libération, expressed concern about what it called businessman Vincent Bolloré’s “tentacular and ideological” grip over the French film industry.

Saada has since said he would no longer work with people who signed the letter, prompting CGT and LDH to decide to take legal action.

"Canal+ will appear in court for breaking the law," their statement reads.

In the text, seen by Euronews, the CGT and LDH called Saada's comments "unacceptable and brutal," accusing him of "discriminating on the basis of political and trade-union expression in order to muzzle the voices in the industry that are speaking out against Vincent Bolloré’s growing grip on the entire chain of film production and distribution."