Apple and The Tetris Company are facing a lawsuit filed by author Dan Ackerman, who accuses them of adapting his 2016 book The Tetris Effect: The Game That Hypnotized the World into a film without his permission. The lawsuit, which identifies 22 “similarities” between the book and the movie Tetris which released earlier this year, requests damages of six percent of the film’s $80 million production budget, equal to $4.8 million.