Tamil filmmaker Karthik Subbaraj penned the story for Shankar's Ram Charan and Kiara Advani-starrer Game Changer which failed to make a mark. Game Changer (2025) was one of the biggest failures in the careers of Shankar and Ram Charan. Even today, the film's collection posters continue to be trolled. Writer-director Karthik Subbaraj's comments on Ram Charan's Game Changer are shocking. Here's everything the Petta director has said.