Mardenborough can eagerly describe the technicalities that distinguish game from reality — the sensation, for instance, of the vibration through the car seat — but said that much of the real-world feeling and reactions mirrored Gran Turismo.

“When you race against real people,” he said, “everything is real.”

Mardenborough, who is played by Archie Madekwe in “Gran Turismo,” went line by line with Sony over early drafts of the script, which he noted is mostly true to his life. The characters played by David Harbour and Orlando Bloom are both fictionalized but loosely based on real people. And a crash involving Mardenborough in Germany that left a spectator dead really happened, although detractors have complained about how the tragic event was translated to the screen.

In the film, the crash occurs right before Mardenborough returns to the track for a podium finish at Le Mans, the famous endurance race in France — back-to-back events that form an emotional arc of setback and triumph. In reality, Mardenborough’s crash in Germany came two years after that podium finish, leading to criticism that the film’s timeline was edited to serve a narratively pat movie ending.

“The order is the order, but those events happened in my life,” Mardenborough, who avoided serious injuries, said in response. “This isn’t a documentary.” He did race in Le Mans one year after the crash, and Mardenborough said the emotional battle the film constructed was consistent with his feelings.

“When you believe the reason why you’re put on earth is to race a racing car, and then you’re asking yourself, ‘Do I still want to do this?’” he said. “It’s not a pleasant question to ask.”