The film is set in a post-apocalyptic world where monsters exist. The monsters have poor vision, but extremely good hearing. The slightest noise, and they pounce, forcing the Abbott family to live in silence. Krasinski co-wrote and directed the film, and also starred alongside his real-life wife Emily Blunt. But there was one role on the film he had kept secret, until Kimmel outed him. "This is going to end my career," Krasinski fretted jokingly.
Krasinski also played the monster in the film. "The amazing people at ILM asked, 'So how does the creature move?' and I said, 'Well, this is how I think he's gonna crawl.' And they said, 'Well, why don't you throw on the suit?' And I was like, 'Totally!'" Krasinski told Kimmel.
For the record, he doesn't really know what's going on in that picture above that Kimmel is holding, but Krasinski assured the host that he was "dialed in" to the role of the monster.
Krasinski also admits that, though he wrote the female lead with his wife in mind, he never got the courage to ask her to play the role. "I got so scared that she would say no, because that's an awkward dinner," he said. But he was more afraid that she would say "yes, I'll do it for you."
"I didn't want her to come to set, just for me, so I didn't ask her," said Krasinski.
Blunt finally read the script on a plane, and he said it felt like a proposal in a romantic comedy. "'You can't let anyone do this movie. You have to let me play this part.' I think I just screamed out 'YES!' on the flight. It was the reason why the movie was so special, because we both came to it organically."
A Quiet Place is available on DVD, blu-ray, and digital download. A sequel is expected in the spring of 2020.