Dan Ackerman author of the book “The Tetris Effect: The Game That Hypnotized the World” filed a lawsuit claiming that tech giant Apple and Tetris Co., its makers Taron Edgerton’s new movie ‘Tetris’ they adapted his story without asking permission.

According to a report by “The New York Post”, 49-year-old Ackerman accuses Apple and Tetris Co. for copyright infringement, unfair competition and unlawful interference with its business relations.

The movie “Tetris” premiered at the SXSW Film Festival on March 15.

The film tells how Hank Rogers, a Dutch-American businessman, managed to secure the rights to the game for its Nintendo Game Boy version in the 1980s – making the puzzle game one of the most famous video games around the world.

Ackerman claims that in 2016, he sent a pre-published copy of his book to Tetris Co., which refused to license the copyright and allegedly turned away other producers interested in the project.

Then, the author states, the company’s CEO Maya Rogers—and later screenwriter Noah Pink—started copying his work in 2017 and threatened to sue him if he attempted to promote other films or TV spinoffs.

Kevin Landau, Ackerman’s lawyer, told Reuters the lawsuit “aims to right a wrong and ensure respect and justice for the work, curation and property of someone who is entitled to such respect and recognition under the law.”